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Science Daily: Dog News

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Urban dogs are more fearful than their cousins from the country

Inadequate socialization, inactivity and an urban living environment are associated with social fearfulness in dogs. Among the most fearful breeds were the Shetland Sheepdog and the Spanish Water Dog, while Wheaten Terriers were one of the most fearless breeds. View the source article
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How animals understand numbers influences their chance of survival

While they can't pick out precise numbers, animals can comprehend that more is, well, more. A neurobiologist explored the current literature on how different animal species comprehend numbers and the impact on their survival, arguing that we won't fully understand the influence of numerical competence unless we study it directly. View the source article
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A gene defect associated with a severe canine lung disease identified

A severe hereditary lung disease has been described in Finnish Airedale Terriers with a failure to thrive during the first days of lives. Researchers discovered the underlying gene defect in the LAMP3 gene, which may also be associated with the lung problems of certain newborn babies. View the source article
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'Fatal attraction': Small carnivores drawn to kill sites, then ambushed by larger kin

Researchers have discovered that large predators play a key yet unexpected role in keeping smaller predators and deer in check. Their 'fatal attraction' theory finds that smaller predators are drawn to the kill sites of large predators by the promise of leftover scraps, but the scavengers may be killed themselves if their larger kin return for seconds. View the source article
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Veterinarians: Dogs, too, can experience hearing loss

Just like humans, dogs are sometimes born with impaired hearing or experience hearing loss as a result of disease, inflammation, aging or exposure to noise. Dog owners and K-9 handlers ought to keep this in mind when adopting or caring for dogs, and when bringing them into noisy environments. View the source article
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Cat food mystery foils diet study

How a study aimed at assessing the wildlife impacts of domestic cats was foiled by the mysterious ingredients of cat food. View the source article
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Frozen bird turns out to be 46,000-year-old horned lark

Scientists have recovered DNA from a well-preserved horned lark found in Siberian permafrost. The results can contribute to explaining the evolution of sub species, as well as how the mammoth steppe transformed into tundra, forest and steppe biomes at the end of the last Ice Age. View the source article
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New test identifies poisonous mushrooms

A simple, portable test can detect the deadliest of the mushroom poisons in minutes, researchers say. Eating toxic mushrooms causes more than 100 deaths a year, globally, and leaves thousands of people in need of urgent medical assistance. Amanitin is the class of mushroom toxins that cause the most serious issues. View the source article
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Dog domestication during ice age

Analysis of Paleolithic-era teeth from a 28,500-year-old fossil site in the Czech Republic provides supporting evidence for two groups of canids -- one dog-like and the other wolf-like - with differing diets, which is consistent with the early domestication of dogs. View the source article
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Fecal excretion of PFAS by pets

Per- and polyfluoroalkyl substances (PFAS) are used in a wide range of consumer products, from pizza boxes to carpets to non-stick cookware. Therefore, it's not surprising that these water- and stain-repelling substances are ubiquitous in the environment. Now, researchers report that cats and dogs excrete some PFAS in their feces at levels that suggest exposures above the minimum risk level, which could also have implications for the pets' owners. View the source article
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A roadblock for disease-causing parasites

Thread-like parasitic worms cause millions of cases of canine heartworm each year, and more than 100 million cases of lymphatic filariasis, also known as elephantiasis, in humans. New research shows that ramping up the immune response of mosquitoes blocked their ability to transmit these harmful parasites. View the source article
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New dog, old tricks? Stray dogs can understand human cues

Pet dogs are highly receptive to commands from their owners. But is this due to their training or do dogs have an innate ability to understand human signals? A new study finds that 80% of untrained stray dogs successfully followed pointing directions from people to a specific location. The results suggest that dogs can understand and respond to complex gestures without any training, meaning that dogs may have an innate connection to human behaviors. View the source article
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Scientists unexpectedly witness wolf puppies play fetch

When it comes to playing a game of fetch, many dogs are naturals. But now, researchers report that the remarkable ability to interpret human social communicative cues that enables a dog to go for a ball and then bring it back also exists in wolves. View the source article
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