Dogs

Researchers surveyed the owners of 18,385 dogs and sequenced the DNA of 2,155 dogs for a new study analyzing dog behavior and breed.   

Dog Breed Doesn't Affect Behavior, According to New Genetic Research

Personality is shaped by a combination of factors, including a pup’s environment

The muscles that allow for the "puppy-dog eyes" in domestic dogs is undeveloped in wolves, suggesting that the adorable look evolved to captivate humans. (Pictured: The author's dog, Smoky.)

The Science Behind Those Big Ol' Puppy-Dog Eyes

Our canine friends evolved extra muscle fibers around their eyes and mouths that allow them to make facial expressions humans find adorable

Murphy, an English Springer Spaniel, participated in the study.

Therapy Dogs Help Reduce Pain in Emergency Room Patients

A new study shows canine companions can reduce anxiety, depression and discomfort in ER patients—and increase their overall well-being

Photographer Jeff Schultz and painter Jon Van Zyle have co-created a series of artworks capturing Alaska and the sled dog community.

For 50 Years, Dogsled Teams Have Been Testing Their Mettle at the Iditarod

Three men who have lived and breathed the Alaskan race for much of its history recall how much has changed—and what has stayed the same

For the study, researchers surveyed 426 adults who had at least two dogs and had experienced the loss of one of their dogs.

Dogs May Mourn the Loss of Other Household Pets

Grieving canines ate less, slept more, and sought more attention from their human companions after the death of a furry friend, according to a survey

Top row (L to R): Bill Clinton's cat Socks (pictured twice), Amy Carter's cat Misty Malarky Ying Yang and George W. Bush's cat India. Bottom row (L to R): India, Calvin Coolidge's cats Blackie and Tiger, and the Bidens' cat Willow

A Colorful History of Cats in the White House

Willow Biden isn’t the first feline to grace the presidential residence's halls

Researchers have located a genetic mutation associated with smaller dogs.

Mutation That Gave Us Tiny Dogs Found in Ancient Wolves

The genetic factor that plays a large role in determining canine body size was around thousands of years prior to domestication

Dogs may even be able to suss out which sounds are words and which are just nonsense.

Dogs Can Tell the Difference Between Human Languages

Canines in the study could differentiate between Spanish, Hungarian and nonsense words

Archaeologists unearthed a terracotta figurine of a dog at an excavation of one of Rome's oldest streets. The statue is estimated to be around 2,000 years old.

Construction in Rome Reveals Well-Preserved, 2,000-Year-Old Dog Statue

Researchers also uncovered three stone tombs, an urn and the remains of a young man

“You become a little bit of a fixture in the community,” says Stewart, seen here in San Diego.

The Veterinarian Brings His Healing Presence to Pets of the Unhoused

Kwane Stewart discovers the little-known world of generosity and love

Parts of Haida Gwaii, an archipelago off British Columbia’s north coast, remained ice free throughout the last ice age. Archaeological investigations of just a few of the islands’ many caves have revealed a trove of surprising finds.

Archaeologists Discover Oldest Domesticated Dog Remains in Americas

Exciting secrets unearthed on Haida Gwaii include a canine tooth, roughly 11,000-year-old stone tools and the tantalizing signs of far more to come

To understand the full effect of inbreeding in all dog breeds, the research team partnered with Wisdom Health Genetics, the largest dog DNA database in the world, to collect data and information from 49,378 dogs ranging across 227 breeds.  

Most Dog Breeds Are Really Inbred

Selecting traits solely for their looks has caused higher rates of inbreeding in most canines—and as a result, higher vet costs

An eastern barred bandicoot explores its space in the Werribee Open Range Zoo.

How Australia’s Eastern Barred Bandicoot Came Back From Extinction

With help from a captive breeding program and the watchful eyes of sheepdogs, the small mammal has been reintroduced to the country’s plains

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Why Do Dogs Tilt Their Heads? New Study Offers Clues

The adorable behavior may be a sign of concentration and memory recall

After comparing all genomes, the researchers found that the Japanese wolf is part of an evolutionary branch of wolves that arose 20,000 to 40,000 years ago. Some of the wolves from this branch evolved into the Japanese wolves while others branched off and gave rise to modern dogs.

Ancient Japanese Wolves May Be the Closest Wild Relative of Modern Dogs

The results challenge previous theories about the origin of dog domestication

African wild dogs are skilled hunters.

Endangered Wild Dogs Rely on Diverse Habitat to Survive Around Lions

A new study shows that bramble and brush help the canines avoid attacks by the big cats, and may offer clues about where to reintroduce the dogs

The shaded yellow phenotype produced by mutations on the ASIP gene are seen in a collie’s coat color.

Golden Fur in Dogs Evolved Two Million Years Ago, Long Before Domestication

Five coat color variations in domestic canines emerged from an ancient ancestor

Neither the FDA nor the researchers would identify the brands tested for the study. They also are not advocating that pet owners discontinue using dog foods containing peas at this time.

Are Peas in Common Dog Foods Contributing to Canine Heart Disease?

At this time, the FDA is not advocating that pet owners discontinue using any specific brand. But studying legumes may lead scientists to the root cause

A new article suggests that cats have been underutilized in studies of genetic disease and that studying their genomes, which are structured similarly to humans', could yield new treatments.

Human Genomes Are Surprisingly Cat-Like

Cat genomes are more similar to ours than those of mice and dogs, yet researchers say felines are underutilized in genetic studies of disease

Officers Paul Douglas (left) and Theodore Santos (right) stand with their newest Covid-19 K9 unit: a female black lab named Huntah (left) and a male golden lab-retriever mix, Duke (right).

Massachusetts Becomes First U.S. State to Enlist Covid-Sniffing Canines

Duke and Huntah are first dogs used by law enforcement to detect coronavirus cases

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