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Science Daily: Dog News

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Entries in this blog

Goats prefer happy people

Goats can differentiate between human facial expressions and prefer to interact with happy people, according to a new study. View the source article
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Quantifying cognitive decline in dogs could help humans with Alzheimer's disease

Researchers have found that a suite of complimentary tests can quantify changes in dogs suspected of suffering from cognitive decline. The approach could not only aid owners in managing their elderly canine's care, but could also serve as a model for evaluating cognitive decline progression in -- and treatments for -- humans with Alzheimer's disease. View the source article
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Overweight dogs respond well to high-protein, high-fiber diet

A study of overweight dogs fed a reduced calorie, high-protein, high-fiber diet for 24 weeks found that the dogs' body composition and inflammatory markers changed over time in ways that parallel the positive changes seen in humans on similar diets. The dogs achieved a healthier weight without losing too much muscle mass, and their serum triglycerides, insulin and inflammatory markers all decreased with weight loss. View the source article
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How old is your dog in human years? New method better than 'multiply by 7'

How old is your tail-wagging bundle of joy in human years? According to the well-known ''rule of paw,'' one dog year is the equivalent of 7 years. Now scientists say it's wrong. Dogs are much older than we think, and researchers devised a more accurate formula to calculate a dog's age based on the chemical changes in the DNA as organisms grow old. View the source article
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Good dog? Bad dog? Their personalities can change

When dog-parents spend extra time scratching their dogs' bellies, take their dogs out for long walks and games of fetch, or even when they feel constant frustration over their dogs' naughty chewing habits, they are gradually shaping their dogs' personalities. View the source article
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Cancer comparison across species highlights new drug targets

Cancer genes in mucosal melanoma, a rare and poorly understood subtype of melanoma, have been compared in humans, dogs and horses for the first time. Researchers sequenced the genomes of the same cancer across different species to pinpoint key cancer genes. The results give insights into how cancer evolves across the tree of life and could guide the development of new therapies. View the source article
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Overlapping genomic regions underlie canine fearfulness and human mental disorders

Researchers have identified two novel anxiety-related genomic regions in German Shepherd dogs. The region associated with fearfulness corresponds with the locus of human chromosome 18, which is associated with various psychiatric disorders, while the region associated with noise sensitivity includes several genes related to human and canine behavior and mental disorders. View the source article
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Yes, your pet can tell time

A new study has found some of the clearest evidence yet that animals can judge time. By examining the brain's medial entorhinal cortex, the researchers discovered a previously unknown set of neurons that turn on like a clock when an animal is waiting. View the source article
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Dogs with noise sensitivity should be routinely assessed for pain by vets

Dogs which show fear or anxiety when faced with loud or sudden noises should be routinely assessed for pain by veterinarians, according to new research. Researchers believe that pain, which could be undiagnosed, could be exacerbated when a noise makes the dogs tense up or 'start', putting extra stress on muscles or joints which are already inflamed leading to and associated with a loud or startling noise. View the source article
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Magnetoreception molecule found in the eyes of dogs, primates

The magnetic sense in migratory birds has been studied in considerable detail: unlike a boy scout's compass, which shows the compass direction, a bird's compass recognizes the inclination of the magnetic field lines relative to Earth's surface. Now scientists report that dog-like carnivores and some primate species may have a magnetic compass similar to that of birds. View the source article
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You can teach an old dog new tricks, but younger dogs learn faster

Aging affects the cognitive abilities of dogs, as a recent study shows. A team of scientists studied dogs of different ages working on a specially designed touchscreen and discovered that although all dogs were capable of learning, older dogs learnt more slowly than younger ones. No age-related differences were found regarding long-term memory. View the source article
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No evidence found for 'black dog syndrome'

Black Dog Syndrome (BDS) does not exist in animal shelters, say scientists. BDS is the idea that black dogs wait longer to be adopted than dogs of other colors. The study also concluded that age and breed group were more important than coat color when it came to adoptability. For example, bully breeds, which can include American pit bull terriers, American Staffordshire terriers or Staffordshire bull terriers, face disproportionately longer stays in shelters. View the source article
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Half of the large carnivore attacks are due to the imprudence of human behavior

Close to 50 percent of large carnivore attacks on humans have involved risk-taking human behaviors. This is one of the main conclusions reached by a study which have analyzed the circumstances of 700 documented attacks of six carnivore species (brown bear, black bear, polar bear, puma, wolf and coyote) since 1955 in the United States, Canada, Sweden, Finland, Russia and Spain. View the source article
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Dogs accelerate the advance of new cancer treatments for both pets and people

A new review suggests integrating dogs with naturally occurring cancers into studies of new drug therapeutics could result in better treatments for our four-legged friends while helping inform therapeutic development for human cancers. The review hopes to close the gap between human and canine cancer research, and accelerate the knowledge developed by studying cancer in both people and pets, a field known as comparative oncology. View the source article
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Wolf species have ‘howling dialects’

Largest quantitative study of howling, and first to use machine learning, defines different howl types and finds that wolves use these types more or less depending on their species, resembling a howling dialect. Researchers say findings could help conservation efforts and shed light on the earliest evolution of our own use of language. View the source article
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Forensic odorology scientifically validated

Odorology is a technique that uses specially-trained dogs to identify human scent. It is used in police investigations to establish that an individual has been at the scene of a crime. However, there is no international norm on how these dogs are trained. View the source article
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