Dog News
  • iconHumans' ability to read dogs' facial expressions is learned, not innate
    Researchers assessed how experience with dogs affects humans' ability to recognize dog emotions. Participants who grew up in a cultural context with a dog-friendly attitude were more proficient at recognizing dog emotions. This suggests that the ability to recognize dogs' expressions is learned through age and experience and is not an evolutionary adaptation.
  • iconAI could help diagnose dogs suffering from chronic pain and Chiari-like malformation
    A new artificial intelligence (AI) technique could eventually help veterinarians quickly identify Cavalier King Charles Spaniel (CKCS) dogs with a chronic disease that causes crippling pain. The same technique identified unique biomarkers which inspired further research into the facial changes in dogs affected by Chiari-like malformation (CM).
  • iconLiver-chip identifies drug toxicities in human, rat, and dog models
    Liver toxicity is a big problem in the drug, food, and consumer products industries, especially because results in animal models fail to predict how chemicals will affect humans. A new Liver-Chip successfully predicts how different drugs impact rat, dog, and human models, and could help get the most effective drugs to patients faster.
  • iconNew findings on gut microbiome's interactions with GI diseases
    A study offers new insight on how the gut bacteria of dogs interact with a healthy vs. unhealthy GI tract, which could contribute to the development of new therapies for GI diseases in both dogs and humans.
  • iconYour dog might be hiding its true colors
    New research shows that some breeds of dogs have hidden coat colors -- and in some cases, other traits -- that have been lurking all along.
  • iconEstrogen's opposing effects on mammary tumors in dogs
    Estrogen's role in canine mammary cancer is more complex than previously understood, according to new research. The nuanced findings may help explain why dogs spayed at a young age are more likely to develop more aggressive cancers, the team says.
  • iconDetection dogs and DNA on the trail of endangered lizards
    Detection dogs trained to sniff out the scat of an endangered lizard in California's San Joaquin Valley, combined with genetic species identification, could represent a new noninvasive sampling technique for lizard conservation worldwide.
  • iconGenetic risk factor for laryngeal paralysis in miniature bull terriers identified
    Laryngeal paralysis is a serious and sometimes deadly disease in some dog breeds that prevents proper opening of the larynx for breathing. Specialists in canine head and neck surgery and geneticists have identify a mutation responsible for laryngeal paralysis in Miniature Bull Terriers, enabling the development of a genetic test for the disease.
  • iconRespiratory diseases linked with high blood pressure in lungs
    Pulmonary hypertension is a type of high blood pressure that affects the lungs of both animals and people. When tiny vessels in the lungs become narrowed or blocked, it becomes harder for blood to flow through and can cause the heart to weaken or fail.
  • iconGenes play a role in dog breed differences in behavior
    Border collies are highly trainable, greyhounds love to chase, and German shepherds make good guard dogs. While the environment plays a role, traits like these are highly heritable, according to a study of 101 dog breeds. The work identifies 131 genetic variants associated with breed differences in behavior.
  • iconDog ownership associated with longer life, especially among heart attack and stroke survivors
    Dog ownership was associated with a 33% lower risk of early death for heart attack survivors living alone and 27% reduced risk of early death for stroke survivors living alone, compared to people who did not own a dog. Dog ownership was associated with a 24% reduced risk of all-cause mortality and a 31% lower risk of death by heart attack or stroke compared to non-owners.
  • iconDog owners often inaccurately measure out kibble
    New research finds dog owners are often inaccurate when measuring out kibble using a scoop, putting the dogs at risk of under-nourishment or weight gain.
  • iconIdentifying a gene for canine night blindness
    Researchers have identified the gene mutation responsible for a form of night blindness in dogs. Strategies to treat this condition, which affects a layer of neurons just below the primary photoreceptor cells, could also inform treatment of other diseases that rely on targeting this cell type.
  • iconLop-eared rabbits more likely to have tooth/ear problems than erect eared cousins
    Lop (floppy) eared rabbits are more likely than erect ('up') eared breeds to have potentially painful ear and dental problems that may ultimately affect their ability to hear and eat properly, finds a small observational study.
  • iconImmune response against Toxocara roundworms helps explain disease
    Neurotoxocarosis (NT) occurs in humans when larvae of the Toxocara roundworm migrate into the central nervous system. That infection is accompanied by a complex molecular signaling cascade, including changes to anti-inflammatory lipid molecules, researchers now report.
  • iconDog rabies vaccination programs affect human exposure, prophylaxis use
    The World Health Organization has made it a goal to eliminate human rabies deaths due to dog bites by the year 2030. An increase in dog rabies vaccination rates decreases dog rabies cases, human exposure, and human deaths, researchers now report.
  • iconWhat wolves' broken teeth reveal about their lives
    An evolutionary biologist has spent more than three decades studying the skulls of many species of large carnivores -- including wolves, lions and tigers -- that lived from 50,000 years ago to the present. She reports today the answer to a puzzling question.
  • iconThe problem with promoting 'responsible dog ownership'
    Dog welfare campaigns that tell people to be 'responsible owners' don't help to promote behaviour change, a new report suggests. Dog owners interviewed for a study all considered themselves to be responsible owners, despite there being great variation in key aspects of their dog-owning behavior.
  • iconAntibody testing reveals dogs can suffer from same autoimmune encephalitis as humans
    Researchers have found that dogs can suffer from the same type of autoimmune encephalitis that people do. The finding could lead to better screening methods for diagnosis and possibly more effective treatments for canine encephalitis.
  • iconCats are securely bonded to their people, too
    Cats have a reputation for being aloof and independent. But a study of the way domestic cats respond to their caregivers suggests that their socio-cognitive abilities and the depth of their human attachments have been underestimated. The findings show that, much like children and dogs, pet cats form secure and insecure bonds with their human caretakers.
  • iconOverweight Danes are more likely to have overweight dogs
    A new study reports that the prevalence of overweight dogs is markedly larger among overweight owners than among normal weight owners. Part of the explanation lies in whether treats are used as training tools or ''hygge-snacks''.
  • iconThe diet-microbiome connection in inflammatory bowel disease
    A change in diet is a go-to strategy for treating inflammatory bowel diseases like Crohn's. In dogs with a similar illness, researchers tracked specific changes in the microbiome as the pets went into remission. The team's findings, which mirror what is seen in children with Crohn's, could inform the design of improved therapeutic diets.
  • iconHidden danger from pet dogs in Africa
    Researchers have detected a potentially human-infective microbe in pet dogs in Nigeria.
  • iconFeeding pets raw food is not considered by pet owners as a significant source of infections
    An extensive international survey indicates that pet owners do not consider raw food to considerably increase infection risk in their household. In the survey, targeted at pet owners, raw food was reliably determined to be a contaminant only in three households.
  • iconFurry friends ease depression, loneliness after spousal loss
    Researchers have found the companionship of a pet after the loss of a spouse can help reduce feelings of depression and loneliness in older adults.
  • iconHow humans have shaped dogs' brains
    Dog brain structure varies across breeds and is correlated with specific behaviors, according to new research. These findings show how, by selectively breeding for certain behaviors, humans have shaped the brains of their best friends.
  • iconYet another way dogs help the military: aeromedical patient evacuations
    Animal-assisted therapy has many benefits in health care. Yet, its biological and psychosocial effects in the military are unknown, especially for injured, airlifted patients. Researchers teamed up with a non-profit animal organization that trains therapy dogs to see if an animal-assisted intervention could reduce stress in this setting. Results showed that levels of the stress biomarkers cortisol, alpha-amylase, and immunoglobulin A, significantly decreased after a 20-minute intervention with the dogs, regardless of post-traumatic stress symptom severity.
  • iconHush, baby -- the dog is whimpering!
    We are all familiar with the sounds of a cat or dog vying for human attention, and for pet-owners, these sounds are particularly evocative. Dog sounds are especially sad to both cat and dog owners, who actually rate a whimpering dog as sounding as sad as a crying baby.
  • iconTreating dogs with human breast cancer drug
    Like many women who develop a particular type of breast cancer, the same gene -- HER2 -- also appears to be the cause of lung cancer in many dogs. Researchers found that neratinib -- a drug that has successfully been used to battle human breast cancer -- might also work for many of the nearly 40,000 dogs in the US that annually develop the most common type of canine lung cancer, known as CPAC.
  • iconDog down: Effort helps emergency medical staff treat law enforcement K-9s
    Law enforcement K-9s face the same dangers their human handlers confront. Recognizing a gap in care for law enforcement K-9s injured on the job, a team of veterinarians, emergency medical services experts and canine handlers has developed protocols for emergency medical service personnel who may be called upon to help treat and transport the injured dogs.
  • iconThe growing trend of emotional support animals
    Emotional Support Animals (ESAs) are showing up in places previously understood to be animal-free. The growing trend includes 'certifying' animals to provide emotional assistance to a person with a diagnosable mental condition or emotional disorder. New research outlines the ethical challenge and offers possible solutions to better serve both people who feel they need ESAs and those who must comply with the animals.
  • iconIntense look at La Brea Tar Pits explains why we have coyotes, not saber-toothed cats
    The most detailed study to date of ancient predators trapped in the La Brea Tar Pits is helping Americans understand why today we're dealing with coyotes dumping over garbage cans and not saber-toothed cats ripping our arms off.
  • iconFearing cougars more than wolves, Yellowstone elk manage threats from both predators
    Wolves are charismatic, conspicuous, and easy to single out as the top predator affecting populations of elk, deer, and other prey animals. However, a new study has found that the secretive cougar is actually the main predator influencing the movement of elk across the winter range of northern Yellowstone National Park.
  • iconCancer without end? Discovery yields fresh insights
    Scientists describe the evolutionary dynamics of a sexually transmitted cancer affecting dogs, which arose in a single ancient animal, living as much as 8.5 millennia ago. The findings provide fresh insights into disease evolution relevant to human cancer study and treatment.
  • iconThe curious tale of the cancer 'parasite' that sailed the seas
    A contagious canine cancer that conquered the world by spreading between dogs during mating likely arose around 6,000 years ago in Asia and spread around the globe through maritime activities, scientists say.
  • iconGene transcripts from ancient wolf analyzed after 14,000 years in permafrost
    RNA -- the short-lived transcripts of genes -- from the 'Tumat puppy', a wolf of the Pleistocene era has been isolated, and its sequence analyzed in a new study. The results establish the possibility of examining a range of RNA transcripts from ancient organisms, a possibility previously thought extremely unlikely because of RNA's short lifespan.
  • iconGenetic similarities of osteosarcoma between dogs and children
    A bone cancer known as osteosarcoma is genetically similar in dogs and human children, according to the results of a new study. The findings could help break the logjam in the treatment of this deadly disease, which hasn't seen a significant medical breakthrough in nearly three decades.
  • iconResearchers track how cats' weights change over time
    Researchers have accessed data on more than 19 million cats and have learned that most cats continue to put on weight as they age.
  • iconInbreeding depression reduces litter sizes in golden retrievers
    New research shows that inbreeding depression, the result of breeding closely-related individuals, reduces litter sizes in purebred golden retrievers.
  • iconIt's dog eat dog on the canine social ladder
    Climbing the social ladder is a 'ruff' business for dogs, new research shows.
  • iconDNA from tooth in Florida man's foot solves 25-year-old shark bite mystery
    In 2018, a Florida man found a piece of tooth embedded in his foot from a shark bite off Flagler Beach 24 years earlier. A DNA test of the tooth revealed the kind of shark that had nabbed his foot nearly a quarter century ago: a blacktip.
  • iconLearning from experience is all in the timing
    Animals learn the hard way which sights, sounds, and smells are relevant to survival. New research in flies shows that the timing of these cues plays an important role in how mental associations arise, and elucidates brain pathways involved in this process.
  • iconGlobal data resource shows genetic diversity of chickens
    A total of 174 chicken breeds are described in a publicly accessible database which scientists have built up in recent years. This database, the Synbreed Chicken Diversity Panel (SCDP), includes information about a large proportion of the available chicken species and their diversity. The researchers created a family tree of exceptional completeness and detail.
  • iconJoint hypermobility related to anxiety, also in animals
    Researchers report the first evidence in a non-human species, the domestic dog, of a relation between joint hypermobility and excitability: dogs with more joint mobility and flexibility tend to have more anxiety problems.
  • iconThe evolution of puppy dog eyes
    Dogs have evolved new muscles around the eyes to better communicate with humans. New research comparing the anatomy and behavior of dogs and wolves suggests dogs' facial anatomy has changed over thousands of years specifically to allow them to better communicate with humans.
  • iconManaging the risk of aggressive dog behavior
    Aggressive behavior in pet dogs is a serious problem for dog owners across the world, with bite injuries representing a serious risk to both people and other dogs. New research has found that clinical animal behaviorists should focus on helping dog owners to feel confident in the effectiveness of the behavior modification techniques that they recommend and, in their ability, to actually use them successfully.
  • iconBetter prognosticating for dogs with mammary tumors
    For dogs with mammary tumors, deciding a course of treatment can depend on a variety of factors, some of which may seem to contradict one another. With a new, practical system developed by veterinarians, determining a prognosis and making treatment decisions should be an easier task.
  • iconBehavioral correlations of the domestication syndrome are decoupled in modern dog breeds
    A new study used behavioral data from more than 76,000 dogs, to test the hypothesis that key behaviors in the domestication syndrome are correlated.
  • iconDogs mirror owner's stress
    The levels of stress in dogs and their owners follow each other, according to a new study. The scientists believe that dogs mirror their owner's stress level, rather than vice versa.
  • iconIn hot pursuit of dinosaurs: Tracking extinct species on ancient Earth via biogeography
    Identifying the movements of extinct species from millions of years ago can provide insights into ancient migration routes, interaction between species, and the movement of continents.
  • iconWild boars, hunting dogs and hunters carry tick-borne bacteria
    Rickettsia bacteria cause a number of human and animal infections, including Rocky Mountain spotted fever. Now, researchers have for the first time surveyed the prevalence of Rickettsia antibodies and Rickettsia-carrying ticks in wild boars, hunting dogs and hunters in Brazil.
  • iconIconic Australian working dog may not be part dingo after all
    Researchers have found no genetic evidence that the iconic Australian kelpie shares canine ancestry with a dingo, despite Australian bush myth.
  • iconEcologists find bush dog, native of South America, in remote central Costa Rica
    Wildlife ecologists who are studying different conservation practices in the forests of Costa Rica recently made a startling discovery on a wildlife camera trap -- wild bush dogs documented farther north than ever before and at the highest elevation.
  • iconWolf-dog 'swarms' threaten Europe's wolves
    'Swarms' of wolf-dog crossbreeds could drive Europe's wolves out of existence, according to the lead author of new research.
  • iconStudy identifies dog breeds, physical traits that pose highest risk of biting children
    Nearly five million people are bitten by dogs each year in the United States, and children are at a much higher risk than adults. Dog bites can cause significant psychological and physical damage, and bites to the face often require reconstructive surgery to repair injuries ranging from nerve damage to tissue loss. While certain breeds are known to bite more frequently or cause more severe injuries, a new study finds the breed was unknown in about 60 percent of dog bite cases.
  • iconRocky mountain spotted fever risks examined
    In Mexicali, Mexico, an uncontrolled epidemic of Rocky Mountain spotted fever, one of the deadliest tickborne diseases in the Americas, has affected more than 1,000 people since 2008.
  • iconThe return of the wolves
    Researchers examine global strategies for dealing with predators.
  • iconOwning a dog is influenced by our genetic make-up
    Scientists have studied the heritability of dog ownership using information from 35,035 twin pairs from the Swedish Twin Registry. The new study suggests that genetic variation explains more than half of the variation in dog ownership, implying that the choice of getting a dog is heavily influenced by an individual's genetic make-up.
  • iconMutation makes bulldogs and Norwich terriers more susceptible to breathing problems
    The discovery of a new mutation associated with breathing difficulties in popular dog breeds suggests that shortened skulls causing flat faces is not the only factor that contributes to the condition, but that swelling around the airways from edema may also play a role.
  • iconComplete removal of tumor reduces risk of recurrence of cancer in dogs
    The relative risk of a recurrence of cancer is reduced by 60% in dogs whose tumors are completely removed, a new analysis has found.