Category: Environment

Picture Parade Four Hundred and Eighty-Three

The last day of April, 2023, brings a change in the Picture Parades.

My son, Alex, is a very keen photographer and has taken many beautiful photos of birds. He wants to build his following especially on Instagram (that is a link to Alex’s page) and I was very willing to assist him in his endeavour.

So starting today I will be posting the photographs taken by Alex and repeating this every other Sunday. In other words, I shall now be alternating between birds and dogs for as long as is possible.

But first of all here is Alex’s QR code.

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Alex uses an Olympus camera, an OM-1, and his lens is an Olympus M zuiko 150-400TC pro. A feature of the camera is the continuous shooting rate of 130 frames per second that Alex uses to good effect; as you can see.

So if you are interested in photography, please go across to this Instagram link and revel in the wonderful pictures featuring wildlife from the UK🇬🇧, mainly in the counties of Somerset, Gloucestershire and Bristol.

Next Sunday we are back to dogs!

A post on preventing dog bites.

This article from the ASPCA is being shared.

Luckily dogs that have behaviour problems are unknown in our home. But that doesn’t mean that a primer on preventing dog bites is not called for. The following seems like a primer!

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Dog Bite Prevention

Increasing Safety, Reducing Risks

To reduce the number of injuries from dog bites, adults and children should be educated about bite prevention, and dog owners should practice responsible dog ownership.

Understanding dog body language is a key way to help avoid being bitten for people of all ages. Know the signs that dogs give to indicate that they’re feeling anxious, afraid, threatened or aggressive, and be sure to respect the dog’s feelings about interacting with or being touched by strangers.

  • An aggressive dog may try to make themselves look bigger. Their ears may be up and forward, the fur on their back and tail may stand on end or puff out, and their tail may be straight up—it may even wag. They may have a stiff, straight-legged stance and be moving toward or staring directly at what they think is an approaching threat. They may also bare their teeth, growl, lunge or bark.
  • An anxious or scared dog may try to make themselves look smaller. They may shrink to the ground in a crouch, lower their head, repeatedly lick their lips, put their tail between their legs, flatten their ears back and yawn. They may look away to avoid direct eye contact. The dog may stay very still or roll on their back and expose their stomach. Alternatively, they may try to turn away or slowly move away from what they think is an approaching threat.
  • Many dogs can show a mixture of these body postures, indicating that they feel conflicted. Remember to avoid any dog showing any of signs of fear, aggression or anxiety—no matter what else the dog is doing. It’s important to realize that a wagging tail or a crouching body doesn’t always mean friendliness.
  • Ask first before petting a dog. When meeting an unfamiliar dog, don’t reach out to pet them. First, ask their pet parent, “May I pet your dog?” A strange hand in a dog’s face may scare them, leading to a bite.
  • If you receive permission to pet a dog, let them sniff your closed hand. Then, you may proceed to pet their shoulders or chest. Avoid petting the top of the dog’s head. If the dog looks uncomfortable, speak happily to the dog and casually remove your hand. Resist moving abruptly or jerkily.
  • Avoid dogs who are barking or growling. It is also best to steer clear of dogs who are loose, behind a fence or tied up.
  • If an unknown dog approaches you, stay quiet and still. Do not run or scream.
  • Always supervise children and dogs. Never leave a baby or young child alone with a dog. Teach your children to treat your dog gently and with respect, giving the dog their own space and opportunities to rest.
  • When in public, always keep your dog on a leash for the safety of your dog and those around them.

Recommendations for Pet Parents

Although you can’t guarantee that your dog will never bite someone, there are many ways that you can significantly reduce the risk.

  • Adopt from a well-managed animal shelter whose staff and volunteers can fill you in on the dog’s background, personality and behavior in the shelter.
  • Socialize your dog! Well-socialized dogs make enjoyable, trustworthy companions. Undersocialized dogs are a risk to their owners and to others because they can become frightened by everyday things—which means they are more likely to aggress or bite. Socializing is the opposite of isolating. It’s important for puppies to meet, greet and enjoy a variety of people, animals, places and things. Done properly, socializing helps puppies feel comfortable and friendly in various situations, rather than uncomfortable and potentially aggressive. The main rule for effective socializing is to let your dog progress at their own pace and never force them to be around someone or something when they’re clearly fearful or uncomfortable.
  • Take your dog to humane, reward-based training classes—the earlier the better. We recommend starting your puppy in puppy kindergarten classes as early as eight weeks, right after their first set of vaccinations. Early training opens a window of communication between you and your dog that will help you consistently and effectively teach them good behavior.
  • Always supervise your dog while they’re outdoors—even in a fenced yard. Don’t allow your dog to roam alone.
  • Don’t wait for a serious accident to happen. The first time your dog shows aggressive behavior toward anybody, even if no injury occurs, seek professional help from a Certified Applied Animal Behaviorist (CAAB), a veterinary behaviorist (Dip ACVB), or a qualified Certified Professional Dog Trainer (CPDT). Please see our article, Finding Professional Behavior Help, for information about finding an expert in your area. Your animal shelter may also offer or be able to refer you to helpful services.
  • Err on the safe side. Be aware of common triggers of aggression, including pain, injury or sickness, the approach of strangers or strange dogs, the approach of people in uniforms, costumes or unusual attire (especially hats), unexpected touching, unfamiliar places, crowds and loud noises like thunder, wind, construction, fireworks and appliances. If possible, avoid exposing your dog to these triggers. If they seem stressed or panicked in crowds, leave them at home. If they overreact to visitors or delivery personnel, keep them in another room when they come to your house. Work with a qualified behavior and training professional to help your dog become more comfortable with these and other situations.
  • License your dog as required by law and provide regular veterinary care, including rabies vaccinations.

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This appears to be very good advice, and I hope there’s no-one out there that has suffered from the consequences of dog aggression. If there’s a reader who has something to share with you all, then read my Interaction page.

Dogs foraging!

A plant list from the ASPCA.

This list came in from the ASPCA recently and I though it worth sharing with you. But just before I do that let me select from the About Us page on the ASPCA website.

We Are Their Voice

The American Society for the Prevention of Cruelty to Animals® (ASPCA®) was the first humane society to be established in North America and is, today, one of the largest in the world.

Our organization was founded on the belief that animals are entitled to kind and respectful treatment at the hands of humans and must be protected under the law. Headquartered in New York City, the ASPCA maintains a strong local presence, and with programs that extend our anti-cruelty mission across the country, we are recognized as a national animal welfare organization. We are a privately funded 501(c)(3) not-for-profit corporation, and are proud to boast more than 2 million supporters across the country.

The ASPCA’s mission, as stated by founder Henry Bergh in 1866, is “to provide effective means for the prevention of cruelty to animals throughout the United States.”

Plus there is a YouTube video.

Now to that plant list. It is a long list and I am going to only show you the first few dozen plants. If you want to see more of the list then you are going to have to go here and look it up for yourself.

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Toxic and Non-Toxic Plant List – Dogs

Plants Toxic to Dogs

Adam-and-Eve (Arum, Lord-and-Ladies, Wake Robin, Starch Root, Bobbins, Cuckoo Plant) | Scientific Names: Arum maculatum | Family: Araceae 

African Wonder Tree () | Scientific Names: Ricinus communis | Family:

Alocasia (Elephant’s Ear) | Scientific Names: Alocasia spp. | Family: Araceae 

Aloe () | Scientific Names: Aloe vera | Family: Liliaceae 

Amaryllis (Many, including: Belladonna lily, Saint Joseph lily, Cape Belladonna, Naked Lady) | Scientific Names: Amaryllis spp. | Family: Amaryllidaceae 

Ambrosia Mexicana (Jerusalem Oak, Feather Geranium) | Scientific Names: Chenopodium botrys | Family:Chenopodiaceae 

American Bittersweet (Bittersweet, Waxwork, Shrubby Bittersweet, False Bittersweet, Climbing Bittersweet) | Scientific Names: Celastrus scandens | Family: Celastraceae 

American Holly (English Holly, European Holly, Oregon Holly, Inkberry, Winterberry) | Scientific Names: Ilex opaca | Family: Aquifoliaceae 

American Mandrake (Mayapple, Indian Apple Root, Umbrella Leaf, Wild Lemon, Hog Apple, Duck’s Foot, Raccoonberry) | Scientific Names: Podophyllum peltatum | Family: Berberidaceae 

American Yew (Canada Yew, Canadian Yew) | Scientific Names: Taxus canadensus | Family: Taxaceae 

Andromeda Japonica (Pieris, Lily-of-the-Valley Bush) | Scientific Names: Pieris japonica | Family: Ericaceae 

Angelica Tree (Hercules’ Club, Devil’s Walking Stick, Prickly Ash, Prickly Elder) | Scientific Names: Aralia spinosa | Family:Araliaceae 

Apple (Includes crabapples) | Scientific Names: Malus sylvestrus | Family: Rosaceae 

Apricot (Group also includes Plum, Peach, Cherry) | Scientific Names: Prunus armeniaca | Family: Rosaceae 

Arrow-Head Vine (Nephthytis, Green Gold Naphthysis, African Evergreen, Trileaf Wonder) | Scientific Names: Syngonium podophyllum | Family: Araceae 

Arum (Cuckoo-pint, Lord-and-Ladies, Adam-and-Eve, Starch Root, Bobbins, Wake Robin) | Scientific Names: Arum maculatum | Family: Araceae 

Arum Lily (Calla Lily, Pig Lily, White Arum, Trumpet Lily, Florist’s Calla, Garden Calla) | Scientific Names: Zantedeschia aethiopica | Family: Araceae 

Asparagus Fern (Asparagus, Emerald Feather, Emerald Fern, Sprengeri Fern, Plumosa Fern, Lace Fern, Racemose Asparagus, Shatavari) | Scientific Names: Asparagus densiflorus cv sprengeri | Family: Liliaceae 

Australian Ivy Palm (Schefflera, Umbrella Tree, Octopus Tree, Starleaf) | Scientific Names: Brassaia actinophylla | Family:Araliaceae 

Australian Nut (Macadamia Nut, Queensland Nut) | Scientific Names: Macadamia integrifolia | Family: Proteaceae 

Autumn Crocus (Meadow Saffron) | Scientific Names: Colchicum autumnale | Family: Liliaceae 

Azalea (Rosebay, Rhododendron) | Scientific Names: Rhododendron spp | Family: Ericaceae 

Baby Doll Ti Plant (Ti-Plant, Good-Luck Plant, Hawaiian Ti Plant) | Scientific Names: Cordyline terminalis | Family:Agavaceae 

Barbados Aloe (Medicine Plant, True Aloe) | Scientific Names: Aloe barbadensis | Family: Aloaceae 

Barbados Lily (Amaryllis, Fire Lily, Lily of the Palace, Ridderstjerne) | Scientific Names: Hippeastrum spp. | Family:Amaryllidaceae 

Barbados Pride (Peacock Flower, Dwarf Poinciana) | Scientific Names: Caesalpinia pulcherrima | Family:

Barbados Pride 2 (Bird of Paradise, Poinciana, Brazilwood) | Scientific Names: Poinciana gilliesii | Family: Leguminosae 

Bay Laurel (Sweet Bag, Bay Tree, Tree Laurel, Laurel Tree, Laurel) | Scientific Names: Laurus nobilis | Family: Lauraceae 

Bead Tree (China Ball Tree, Paradise Tree, Persian Lilac, White Cedar, Japanese Bead Tree, Texas Umbrella Tree, Pride-of-India, Chinaberry Tree) | Scientific Names: Melia azedarach | Family: Meliaceae 

Begonia (Over 1,000 species and 10,000 hybrids) | Scientific Names: Begonia spp. | Family: Begoniaceae 

Bergamot Orange (Bergamot, Citrus bergamia) | Scientific Names: Citrus Aurantium | Family: Rutaceae 

Bird of Paradise (Peacock Flower, Barbados Pride, Poinciana, Pride of Barbados) | Scientific Names: Caesalpinia gilliesii | Family: Leguminosae 

Bird of Paradise 2 (Peacock Flower, Barbados Pride, Poinciana, Pride of Barbados) | Scientific Names: Poinciana gilliesii | Family: Leguminosae 

Bird of Paradise Flower (Crane Flower, Bird’s Tongue Flower) | Scientific Names: Strelitzia reginae | Family: Strelitziaceae 

Bird’s Tongue Flower (Bird of Paradise Flower, Crane Flower) | Scientific Names: Strelitzia reginae | Family: Strelitziaceae 

Bishop’s Weed (Greater Ammi, False Queen Anne’s Lace) | Scientific Names: Ammi majus | Family: Apiaceae 

Bitter Root (Dogbane Hemp, Indian Hemp) | Scientific Names: Apocynum androsaemifolium | Family: Apocynaceae 

Black Calla (Solomon’s Lily, Wild Calla, Wild Arum) | Scientific Names: Arum palestinum | Family: Araceae 

Black Cherry () | Scientific Names: Prunus serotina | Family: Rosaceae 

Black Laurel (Dog Hobble, Dog Laurel, Fetter Bush, Sierra Laurel) | Scientific Names: Leucothoe spp. | Family: Ericaceae 

Black Nightshade (Nightshade, Deadly Nightshade) | Scientific Names: Solanum nigrum | Family: Solanaceae 

Black Walnut () | Scientific Names: Juglans nigra | Family: Juglandaceae 

Bobbins (Arum, Lord-and-Ladies, Adam-and-Eve, Starch Root, Wake Robin, Cuckoo Plant) | Scientific Names: Arum maculatum | Family: Araceae 

Bog Laurel (Pale Laurel, Bog Kalmia) | Scientific Names: Kalmia poliifolia | Family: Ericaceae 

Borage (Starflower) | Scientific Names: Borage officinalis | Family: Boraginceae 

Boxwood () | Scientific Names: Buxus spp. | Family: Buxaceae 

Branching Ivy (English Ivy, Glacier Ivy, Needlepoint Ivy, Sweetheart Ivy, California Ivy) | Scientific Names: Hedera helix | Family: Araliaceae 

Brazilwood (Bird of Paradise, Poinciana, Barbados Pride) | Scientific Names: Poinciana gilliesii | Family: Leguminosae 

Bread and Butter Plant (Indian Borage, Spanish Thyme, Coleus, Maratha, Militini, East Indian Thyme) | Scientific Names:Coleus ampoinicus | Family: Labiatae 

Brunfelsia (Yesterday, Today, Tomorrow, Kiss-Me-Quick, Lady-of-the-Night, Fransiscan Rain Tree) | Scientific Names:Brunfelsia species | Family: Solanaceae 

Buckeye (Horse Chestnut) | Scientific Names: Aesculus spp | Family: Hippocastanaceae 

Buckwheat () | Scientific Names: Fagopyrum spp. | Family: Polygonaceae 

Buddhist Pine (Yew Pine, Japanese Yew, Southern Yew, Podocarpus) | Scientific Names: Podocarpus macrophylla | Family: Podocarpaceae 

Burning Bush (Wahoo, Spindle Tree) | Scientific Names: Euonymus atropurpurea | Family: Celastraceae 

Buttercup (Butter Cress, Figwort) | Scientific Names: Ranunculus spp. | Family: Ranunculaceae 

Butterfly Iris (Spuria Iris) | Scientific Names: Iris spuria | Family: Iridaceae

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That was only the ‘A’ and ‘B’ selection!

I did say it was a long list. Again, if you want to go there here is the link.

If by sharing this information one dog’s life is saved then it was worthwhile.

His first working dog.

I have permission from Jason to republish his post.

When I receive notice that there has been a new follower of Learning from Dogs I go across to their blog site and leave a ‘thank you’ note..

So it was with Jason who, I assume, is a relatively new member of the WordPress club. He has published a blog Life Journeys and Passions. The first post is How I met my first working dog.

As soon as I read it I contacted Jason and asked his permission to share it with you all.

Here it is!

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How I met my first working dog.

April 6th, 2023

Hello, my name is Jason. For as long as I can remember, I have loved dogs. Dogs have been a big part of my life while growing up. They have also been a big part of having a family with kids. 

I am super lucky, because over the last couple of years, I have had the job of my dreams. I get to work with a dog every day. This dog has become my best friend, she has become my work partner, and she has become a very important part of my family.

I am excited to share my stories about this big, floppy eared, wrinkly faced, hard working Bloodhound. Would it surprise any of you that the job that Sophie and I do every day is to help find people that have gone missing?

Her nose, second to none in the dog world, has helped the community where we work to find people in many aspects. We have found criminals that have ran away from law enforcement, we have found missing children that ran away from home, and we have helped look for people that for any number of circumstances were in danger if they weren’t found in a timely manner.

This is Sophie!

I hope to be able to entertain you with stories of this wonderful dog. She’s got a stubborn streak both while working and while at home. She has made life interesting to be sure, and more entertaining and loving than I deserve in a friend and partner. I want to share my story of how I met her. 

Unfortunately, her story wasn’t one without a few struggles of her own. She had to deal with some struggles before I was able to be lucky enough to have her stumble head first into my life. Maybe in some ways though, her and I were better off having to work through some of the repercussions of moving away from multiple families. Maybe because of what she went through, it opened my eyes to the opportunity to train with her in more than just search and rescue type work. 

It’s been a long road from the time that I got her. Trying to help her get through her anxiety and stress that led to her sometimes biting people, dog aggression, and sometimes just not wanting to listen to me at all.

The dog that I live with now is still a working machine. She loves the hunt more than anything else. So much so that if we go too many days without it, she starts destroying my house. Instead of the biting and hating other dogs, she now gets to live with my family of a wife and two children. She has grown to love and co-exist with a stubborn Rottweiler that constantly gives her a run for her money.

I still wonder how I had the opportunity to have a dog that was born and raised in Massachusetts. At least for the first two years of her life.

Her story started with a hound handler that had many years, and many hounds during his time of working with dogs. Sophie was still really young when her handler had an unfortunate thing happen to him. He injured his back to where he was no longer able to run with a hound the same way he had in the past.

With her age, abilities, and ultimately what she was bred for, her first owner decided that he still wanted the world to have the opportunity to have Sophie provide her assistance to a community somewhere.

Across the United States in the state of Utah was a small police department that had been in contact with the organization that Sophie’s handler was part of. The police chief with this department had attended a seminar where this organization presented the abilities and benefits of a hound working for a local police department.

This police chief made quick friends with the people of this organization. He was also invited to Massachusetts where he spent some time watching the hounds work. Learning first hand what these amazing dogs can do to help find missing people.

When this organization realized that Sophie needed a new home, they contacted this chief from Utah and told them of a rare opportunity they wanted to offer him. They told him that they had a hound that needed to be re-homed. That she was a couple of years old, and was fully trained in her abilities. All she needed was a handler and a department willing to use her. The chief of police sent his lieutenant to Massachusetts where he spent about a week learning the basics of how Sophie worked. The lieutenant then drove back to Utah to start a bloodhound unit program with this police department.

A couple of years in of getting this program off of the ground, another incident happened. Sophie’s new handler got injured. For month’s it was thought that the lieutenant would be back to work. He was adamant that he wanted to stay with the department until Sophie retired so he could take her with him. He came to the realization though, that he was going to have to leave before Sophie could retire.

It was rumored around the police department that Sophie was just going to retire with the lieutenant even though she had years left available to keep working and providing for the community. One day, the lieutenant announced that he wanted officers to put in letters of interest to be the new hound handler for the department. He told those interested that there was going to be a panel of three officers, all hound handlers from Utah, that would decide who the best candidate would be for Sophie.

I was about two years into my career as a law enforcement officer at this same police department where Sophie worked. When I first started in law enforcement, my goal and biggest dreams were to work with a dog in some capacity. When I heard that they were looking for people that wanted the position, I didn’t think much of it. I was newer, other more experienced officers were putting in for the position, and I didn’t know if I wanted to run a tracking/trailing dog. I had always dreamed of having a dog that helped find drugs or had a more known job as a police officer.

I was called by my lieutenant shortly after the position to be Sophie’s handler opened up. He was aware that I have always wanted to be a K9 handler. He knew that I spent a lot of time working with another officer with the department that has a dog used to find drugs. He told me that he wanted me to put in for the position.

I wrote my letter of interest, then started the process of getting ready to interview. I had a small amount of experience with training a dog that I had previously that had behavior issues. My experience was no more than working with a company that helped with behavioral modification for my dog that had health and anxiety issues.

During the interview, among many questions, I was asked what experience I had working with dogs. I shared the small bit of experience that I had. Among all the other questions that stood out to me was asking if my family was prepared for the time and energy it took to be a police K9 handler. I was able to explain to them that my wife was very aware that having a dog in a working capacity has been a dream of mine even before meeting her. That I probably have no idea how big of a commitment this really was, but if given the opportunity, I would give it my all and put forth all the effort I could to succeed.

Hours after the interview, my lieutenant called me and one other officer that made it to the final interview process. The call was to announce to the two of us who had gotten the position. I expected this other officer, almost a 20 year veteran officer, to get the position. Well, I was pleasantly surprised and shocked that my name was the one called to be Sophie’s next handler!

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I hope you read it completely through because you would agree with me that this is most interesting. Hopefully, Jason will be publishing more posts.

Picture Parade Four Hundred and Seventy-Nine

Back to Unsplash and Sleeping Dogs!

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Perfect photographs! Thanks to Unsplash; it is a great site!

This is just a beautiful Picture Parade

In other words, Picture Parade Four Hundred and Seventy-Eight.

Introducing A guest post (sort of) by Cara Sue Achterberg.

Read this! It tells the story of the volunteers who spend their time at the Animal Control centre in Bernie County.

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Animal Control And/Or Care

By Cara Sue Achterberg

Bertie County is a small county most people pass through on their way to vacation on the Outer Banks. The county’s tiny shelter is the next to last stop on a road that ends at the regional jail. The shelter sits on a property prone to flooding, and although the county has had plans to move it, the folks we talked to were skeptical that the collection of sheds, trailers, and kennels would leave the spot it has occupied as long as anyone can remember.

Bertie County Animal Control in Windsor is a municipal, open-intake shelter comprised of ten kennels on a concrete pad with a roof, plus two quarantine kennels, and three puppy runs.

There is no heat or AC or walls, for that matter. The day we arrived, county maintenance workers were busy wrapping plastic around the kennels to try to give the dogs some protection from the cold.

The county has two full-time Animal Control officers and one part-time ACO, but the care of the dogs is done by Josh, a full-time kennel tech. The county pays for Josh (and a part-time person who comes in once on Saturday and Sunday to feed/clean), plus the ACO salaries, and the property utilities, but everything else is left up to the Bertie County Humane Society.

Beyond the $2000/year the county gives the Humane Society, they must raise the money to pay for everything else – veterinary needs, vaccinations, spay/neuter, food/treats, transport to rescues, beds, heartworm preventative, flea/tick treatment, dewormers and anything else.

Pretty much every dog that comes in is heartworm positive. As Vicky, a volunteer who used to be the kennel manager at the shelter, told me, “If we get one that’s negative, I go buy a lottery ticket!”

Vicky was at the shelter that day to give rabies vaccines to Cooper and Spot, two young dogs at the shelter. (NC is the first state I’ve discovered that doesn’t require that rabies vaccines be given by a veterinarian.)

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We learned about Bertie County after we connected with another of their volunteers, Gina. Gina lives two hours away, but she is a tireless advocate for the dogs and the shelter. She networks the dogs to rescues, arranges for veterinarian appointments and transports, even finds donors to pay for heartworm treatment. Gina is one of those rescue warriors with a heart that just slays me. It’s inhuman how many hours and how much work she puts in to save these dogs, many she has never met.

Gina has been involved with BCHS ever since she discovered how many dogs were being killed in Bertie County. She began pulling dogs to foster within her rescue operation and eventually called on other rescues to get involved. Because she lives so far away, she depends on Diane, who lives in Bertie County and is the president of the Humane Society, and Vicky, who used to be the kennel manager at the shelter and still volunteers her time there.

There were only six dogs (and lots of cats) the day we visited thanks to Gina’s work to find rescues to empty the shelter just before the holidays and the bitter, record cold that came. The shelter normally handles about 100 dogs a year.

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Because of the number of photographs, beautiful photographs I would add, this is today’s Picture Parade.

There’s more to water than one might think.

This post attracted me and I wanted to share it with you.

Here in Oregon we are lucky because the ground water is of a high quality and there is plenty of it. At home we drink our water straight from our well without any filtering or chlorination. Have been doing that ever since we moved in back in 2012.

But water is a much deeper subject than I tend to think of and this article is an in-depth review of the topic. It is an article from The Conversation.

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Water in space – a ‘Goldilocks’ star reveals previously hidden step in how water gets to planets like Earth

The star system V883 Orionis contains a rare star surrounded by a disk of gas, ice and dust.
A. Angelich (NRAO/AUI/NSF)/ALMA (ESO/NAOJ/NRAO), CC BY

John Tobin, National Radio Astronomy Observatory

Without water, life on Earth could not exist as it does today. Understanding the history of water in the universe is critical to understanding how planets like Earth come to be.

Astronomers typically refer to the journey water takes from its formation as individual molecules in space to its resting place on the surfaces of planets as “the water trail.” The trail starts in the interstellar medium with hydrogen and oxygen gas and ends with oceans and ice caps on planets, with icy moons orbiting gas giants and icy comets and asteroids that orbit stars. The beginnings and ends of this trail are easy to see, but the middle has remained a mystery.

I am an astronomer who studies the formation of stars and planets using observations from radio and infrared telescopes. In a new paper, my colleagues and I describe the first measurements ever made of this previously hidden middle part of the water trail and what these findings mean for the water found on planets like Earth.

The progression of a star system from a cloud of dust and gas into a mature star with orbiting planets.

Star and planet formation is an intertwined process that starts with a cloud of molecules in space.
Bill Saxton, NRAO/AUI/NSF, CC BY

How planets are formed

The formation of stars and planets is intertwined. The so-called “emptiness of space” – or the interstellar medium – in fact contains large amounts of gaseous hydrogen, smaller amounts of other gasses and grains of dust. Due to gravity, some pockets of the interstellar medium will become more dense as particles attract each other and form clouds. As the density of these clouds increases, atoms begin to collide more frequently and form larger molecules, including water that forms on dust grains and coats the dust in ice.

Stars begin to form when parts of the collapsing cloud reach a certain density and heat up enough to start fusing hydrogen atoms together. Since only a small fraction of the gas initially collapses into the newborn protostar, the rest of the gas and dust forms a flattened disk of material circling around the spinning, newborn star. Astronomers call this a proto-planetary disk.

As icy dust particles collide with each other inside a proto-planetary disk, they begin to clump together. The process continues and eventually forms the familiar objects of space like asteroids, comets, rocky planets like Earth and gas giants like Jupiter or Saturn.

A cloudy filament against a backdrop of stars.

Gas and dust can condense into clouds, like the Taurus Molecular Cloud, where collisions between hydrogen and oxygen can form water.
ESO/APEX (MPIfR/ESO/OSO)/A. Hacar et al./Digitized Sky Survey 2, CC BY

Two theories for the source of water

There are two potential pathways that water in our solar system could have taken. The first, called chemical inheritance, is when the water molecules originally formed in the interstellar medium are delivered to proto-planetary disks and all the bodies they create without going through any changes.

The second theory is called chemical reset. In this process, the heat from the formation of the proto-planetary disk and newborn star breaks apart water molecules, which then reform once the proto-planetary disk cools.

Models of protium and deuterium.

Normal hydrogen, or protium, does not contain a neutron in its nucleus, while deuterium contains one neutron, making it heavier.
Dirk Hünniger/Wikimedia Commons, CC BY-SA

To test these theories, astronomers like me look at the ratio between normal water and a special kind of water called semi-heavy water. Water is normally made of two hydrogen atoms and one oxygen atom. Semi-heavy water is made of one oxygen atom, one hydrogen atom and one atom of deuterium – a heavier isotope of hydrogen with an extra neutron in its nucleus.

The ratio of semi-heavy to normal water is a guiding light on the water trail – measuring the ratio can tell astronomers a lot about the source of water. Chemical models and experiments have shown that about 1,000 times more semi-heavy water will be produced in the cold interstellar medium than in the conditions of a protoplanetary disk.

This difference means that by measuring the ratio of semi-heavy to normal water in a place, astronomers can tell whether that water went through the chemical inheritance or chemical reset pathway.

A star surrounded by a ring of gas and dust.

V883 Orionis is a young star system with a rare star at its center that makes measuring water in the proto-planetary cloud, shown in the cutaway, possible.
ALMA (ESO/NAOJ/NRAO), B. Saxton (NRAO/AUI/NSF), CC BY

Measuring water during the formation of a planet

Comets have a ratio of semi-heavy to normal water almost perfectly in line with chemical inheritance, meaning the water hasn’t undergone a major chemical change since it was first created in space. Earth’s ratio sits somewhere in between the inheritance and reset ratio, making it unclear where the water came from.

To truly determine where the water on planets comes from, astronomers needed to find a goldilocks proto-planetary disk – one that is just the right temperature and size to allow observations of water. Doing so has proved to be incredibly difficult. It is possible to detect semi-heavy and normal water when water is a gas; unfortunately for astronomers, the vast majority of proto-plantary disks are very cold and contain mostly ice, and it is nearly impossible to measure water ratios from ice at interstellar distances.

A breakthrough came in 2016, when my colleagues and I were studying proto-planetary disks around a rare type of young star called FU Orionis stars. Most young stars consume matter from the proto-planetary disks around them. FU Orionis stars are unique because they consume matter about 100 times faster than typical young stars and, as a result, emit hundreds of times more energy. Due to this higher energy output, the proto-planetary disks around FU Orionis stars are heated to much higher temperatures, turning ice into water vapor out to large distances from the star.

Using the Atacama Large Millimeter/submillimeter Array, a powerful radio telescope in northern Chile, we discovered a large, warm proto-planetary disk around the Sunlike young star V883 Ori, about 1,300 light years from Earth in the constellation Orion.

V883 Ori emits 200 times more energy than the Sun, and my colleagues and I recognized that it was an ideal candidate to observe the semi-heavy to normal water ratio.

A radio image of the disk around V883 Ori.

The proto-planetary disk around V883 Ori contains gaseous water, shown in the orange layer, allowing astronomers to measure the ratio of semi-heavy to normal water.
ALMA (ESO/NAOJ/NRAO), J. Tobin, B. Saxton (NRAO/AUI/NSF), CC BY

Completing the water trail

In 2021, the Atacama Large Millimeter/submillimeter Array took measurements of V883 Ori for six hours. The data revealed a strong signature of semi-heavy and normal water coming from V883 Ori’s proto-planetary disk. We measured the ratio of semi-heavy to normal water and found that the ratio was very similar to ratios found in comets as well as the ratios found in younger protostar systems.

These results fill in the gap of the water trail forging a direct link between water in the interstellar medium, protostars, proto-planetary disks and planets like Earth through the process of inheritance, not chemical reset.

The new results show definitively that a substantial portion of the water on Earth most likely formed billions of years ago, before the Sun had even ignited. Confirming this missing piece of water’s path through the universe offers clues to origins of water on Earth. Scientists have previously suggested that most water on Earth came from comets impacting the planet. The fact that Earth has less semi-heavy water than comets and V883 Ori, but more than chemical reset theory would produce, means that water on Earth likely came from more than one source.The Conversation

John Tobin, Scientist, National Radio Astronomy Observatory

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Now this was a long article and I hope some of you stayed with John’s piece until the very end.

It really shows how the water trail is a much greater and longer journey than I assumed.

The relationship between us and wild animals.

In this particular case looking at the wolf.

So many times a particular article from a website that allows republishing is not only a good and relevant article but also is a quick way of me publishing a post when, as I was yesterday, a bit pressed for time.

So here is that article from The Conversation.

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Wolf restoration in Colorado shows how humans are rethinking their relationships with wild animals

A gray wolf in Yellowstone National Park. NPS/Jim Peaco

Christopher J. Preston, University of Montana

From sports to pop culture, there are few themes more appealing than a good comeback. They happen in nature, too. Even with the Earth losing species at a historic rate, some animals have defied the trend toward extinction and started refilling their old ecological niches.

I’m a philosopher based in Montana and specialize in environmental ethics. For my new book, “Tenacious Beasts: Wildlife Recoveries That Change How We Think About Animals,” I spent three years looking at wildlife comebacks across North America and Europe and considering the lessons they offer. In every case, whether the returnee is a bison, humpback whale, beaver, salmon, sea otter or wolf, the recovery has created an opportunity for humans to profoundly rethink how we live with these animals.

One place to see the rethink in action is Colorado, where voters approved a ballot measure in 2020 mandating the reintroduction of gray wolves west of the Continental Divide. Colorado’s Parks and Wildlife Agency has released a draft plan that calls for moving 30 to 50 gray wolves from other Rocky Mountain states into northwest Colorado over five years, starting in 2024.

Aldo Leopold, the famed conservationist and professor of game management at the University of Wisconsin, believed that moral beliefs evolve over time to become more inclusive of the natural world. And what’s happening in Colorado suggests Leopold was right. Human attitudes toward wolves have clearly evolved since the mid-1940s, when bounties, mass poisoning and trapping eradicated wolves from the state.

Recovering animals encounter a world that is markedly different from the one in which they declined, especially in terms of how people think about wildlife. Here are several reasons I see why societal attitudes toward wolves have changed. The importance of keystone species

Wolves released in northwest Colorado will wear GPS collars that enable wildlife managers to track them.

The idea that certain influential species, which ecologists call keystone species, can significantly alter the ecosystems around them first appeared in scientific literature in 1974. Bison, sea otters, beavers, elephants and wolves all exert this power. One way in which wolves wield influence is by preying on coyotes, which produces ripple effects across the system. Fewer coyotes means more rodents, which in turn means better hunting success for birds of prey.

Wolves also cause nervous behaviors among their prey. Some scientists believe that newly returned predators create a “landscape of fear” among prey species – a term that isn’t positive or negative, just descriptive. This idea has shifted thinking about predators. For example, elk avoid some areas when wolves are around, resulting in ecological changes that cascade down from the top. Vegetation can recover, which in turn may benefit other species.

Insights into pack dynamics

Animal behavioral science research has provided pointers for better wolf management. Studies show that wolf packs are less likely to prey on livestock if their social structure remains intact. This means that ranchers and wildlife managers should take care not to remove the pack’s breeding pair when problems occur. Doing so can fragment the pack and send dispersing wolves into new territories.

Wildlife agencies also have access to years of data from close observation of wolf behavior in places like Yellowstone National Park, where wolves were reintroduced starting in 1995. This research offers insights into the wolf’s intelligence and social complexity. All of this information helps to show how people can live successfully alongside them.

Predators provide economic value

Research has also demonstrated that wolves provide economic benefits to states and communities. Wisconsin researchers discovered that changes in deer behavior due to the presence of wolves have saved millions of dollars in avoided deer collisions with cars. These savings far exceed what it costs the state to manage wolves.

Wolf recovery has been shown to be a net economic benefit in areas of the U.S. West where they have returned. The dollars they attract from wolf-watchers, photographers and foreign visitors have provided a valuable new income stream in many communities.

Predators do kill livestock, but improved tracking has helped to put these losses in perspective. Montana Board of Livestock numbers show that wolves, grizzly bears and mountain lions caused the loss of 131 cattle and 137 sheep in the state in 2022. This is from a total of 2,200,000 cattle and 190,000 sheep. Of the 131 cattle, 36 were confirmed to be taken by wolves – 0.0016% of the statewide herd.

According to the U.S. Department of Agriculture, dogs, foxes and coyotes in Montana all killed more sheep and lambs than wolves did in 2020. Even eagles were three times more deadly to sheep and lambs than wolves were.

Actual costs to ranchers are certainly higher than these numbers suggest. The presence of wolves causes livestock to lose weight because the animals feed more nervously when wolves are around. Ranchers also lose sleep as they worry about wolves attacking their livestock and guard dogs. And clearly, low statewide kills are small comfort to a rancher who loses a dozen or more animals in one year. Margins are always tight in the livestock business.

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A northern Colorado rancher discusses options for protecting his cattle from wolves, which already are naturally present in the state.

What’s more, predators’ economic impacts don’t end with ranching. In Colorado, for example, elk numbers are likely to decline after wolves are reintroduced. This may affect state wildlife agency budgets that rely on license fees from elk hunters. It may also affect hunting outfitters’ incomes.

In my view, voters who supported bringing wolves back to Colorado should remain deeply aware of the full distribution of costs and support proactive compensation schemes for losses. They should be mindful that support for wolf reintroduction varies drastically between urban and rural communities and should insist that effective mechanisms are in place ahead of time to ensure fair sharing of the economic burdens that wolves generate.

A new ethical playing field

Despite these complexities, the idea of the “big bad wolf” clearly no longer dominates Americans’ thinking. And the wolf is not alone. Social acceptance of many other wildlife species is also increasing. For example, a 2023 study found that between 80% and 90% of Montanans believed grizzly bears – which are recovering and expanding their presence there – have a right to exist.

Aldo Leopold famously claimed to have experienced an epiphany when he shot a wolf in New Mexico in the 1920s and saw “a fierce green fire” dying in her eyes. In reality, his attitude took several more decades to change. Humans may have an ingrained evolutionary disposition to fear carnivorous predators like wolves, but the change ended up being real for Leopold, and it lasted.

Leopold, who died in 1948, did not live to see many wildlife species recover, but I believe he would have regarded what’s happening now as an opportunity for Americans’ moral growth. Because Leopold knew that ethics, like animals, are always evolving.

Christopher J. Preston, Professor of Philosophy, University of Montana

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Those last few paragraphs under the sub-heading of ‘A new ethical playing field’ show how many other wildlife species have gained a real advantage, a social acceptance as the article said. Long may it continue.

Please, please watch this

And I wish I knew what to say…

This is a video that is three years old.

But it is more pertinent today than it was when it was first released.

The video asks ‘… why we never really learnt how to talk about this’.

The video is a little less than ten minutes long so watch it now, with the family as well, if that is appropriate, and perhaps have a discussion afterwards.

Jean and I do not have any answers especially when the news is all about other things.

Yes, we know that the climate is changing but what exactly does that mean is a more difficult question to answer. Mind you there are a growing number of organisations committed to finding answers.

Yes, there are many scientists who have clear opinions on the situation but we need a global movement, NOW, to address this very urgent requirement, and there is no sign that the global community are even talking about climate change let alone doing something.

Please, please watch this:

I would love to hear your thoughts.