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Science Daily: Dog News

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Petting therapy dogs enhances thinking skills of stressed college students

Programs exclusively focused on petting therapy dogs improved stressed-out students' thinking and planning skills more effectively than programs that included traditional stress-management information, according to new research.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/emGRWE-Sczo View the source article

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Long-term stress in dogs linked to the owner-dog relationship

The relationship a dog has with its owner is related to its stress level. This is the conclusion of a newly published study. The results also suggest that the link between stress and the owner's personality traits differs between dog breeds.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/2p8S2tKkMRo View the source article

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The African wild dog: An ambassador for the world's largest terrestrial conservation area

The world's largest terrestrial conservation area is located in southern Africa and covers 520,000 square kilometers spanning five countries. A study now shows that the endangered African wild dog mostly remains within the boundaries of the Kavango-Zambezi Transfrontier Conservation Area (KAZA) when dispersing, thus highlighting the relevance of such a large-scale conservation initiative for maintaining key wildlife corridors of threatened species.http://feeds.feedburner.com/~r/sciencedaily/plan

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Dogs' aggressive behavior towards humans is often caused by fear

A study encompassing some 9,000 dogs demonstrated that fearfulness, age, breed, the company of other members of the same species and the owner's previous experience of dogs were associated with aggressive behavior towards humans. The findings can potentially provide tools for understanding and preventing aggressive behavior.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/L1mE5s1yoW4 View the source article

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New therapy target for malignant melanomas in dogs

Scientists have shown that the biological molecule PD-L1 is a potential target for the treatment of metastasized oral malignant melanoma in dogs.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/9BL_HjnR8SA View the source article

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A gene finding links severe canine juvenile epilepsy to mitochondrial dysfunction

Researchers found a cause for severe epilepsy resulting in death in Parson Russell Terrier puppies at a few months of age. A change in the PITRM1 gene can lead to a dysfunction of mitochondria, the cellular energy pumps. Concurrently, amyloid-beta accumulation and widespread neurodegeneration associated with Alzheimer's disease were identified in the puppies' brains. Changes to the PITRM1 gene in humans also cause a severe but slowly progressing brain disease.http://feeds.feedburner.com/~r/scien

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Mystery canine illness identified: Animal coronavirus

An outbreak of vomiting among dogs has been traced back to a type of animal coronavirus by researchers. Vets across the country began reporting cases of acute onset prolific vomiting in 2019/20.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/fhQKbIaTokc View the source article

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Shift in diet allowed gray wolves to survive ice-age mass extinction

Gray wolves are among the largest predators to have survived the extinction at the end of the last ice age. A new study analysing teeth and bones shows that the wolves may have survived by adapting their diet over thousands of years --- from a primary reliance on horses during the Pleistocene, to caribou and moose today.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/UOckykQqSqU View the source article

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Dogs act jealously even when they don't see their rival

Dogs are one of humanity's most-beloved animal companions. They share our homes and seem to reciprocate our affections. But could this emotional bond extend into feelings of jealousy? To help answer that question, a team of researchers gauged the reactions of a group of dogs when their owners appeared to shower attention on a perceived rival.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/J4s4NVt8ttE View the source article

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Dogs infected with Leishmania parasites smell more attractive to female sand flies

Dogs infected with the Leishmania parasite smell more attractive to female sand flies than males, say researchers. Leishmania parasites are transmitted from infected dogs to people by sand flies when they bite. As only female sand flies transmit the parasite, researchers wanted to understand if infection made dogs more attractive to the insect. Globally over 350 million people are at risk of leishmaniasis, with up to 300,000 new cases annually.http://feeds.feedburner.com/~r/sciencedaily/plants_a

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Dog's body size and shape could indicate a greater bone tumor risk

New research has now confirmed that larger breeds, such as Rottweiler, Great Dane and Rhodesian Ridgeback, have a greater risk of osteosarcoma than smaller breeds, as well as showing that breeds with shorter skulls and legs have lower osteosarcoma risk. The findings could inform future breed health reforms as well as studies into the way tumours develop from normal bone.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/0wcyqC-vnFQ View the source article

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Milk prebiotics are the cat's meow

If you haven't been the parent or caregiver of an infant in recent years, you'd be forgiven for missing the human milk oligosaccharide trend in infant formulas. These complex carbohydrate supplements mimic human breast milk and act like prebiotics, boosting beneficial microbes in babies' guts. Milk oligosaccharides aren't just for humans; all mammals make them. New research suggests milk oligosaccharides may be beneficial for cats and dogs when added to pet diets.http://feeds.feedburner.com/~r/s

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Paw hygiene no reason to ban assistance dogs from hospitals

According to a UN-agreement, assistance dogs like guide dogs, signal dogs and medical response dogs are welcome in hospitals and other public places. However, in practice, they are regularly refused entry. Hygiene reasons are often given as the main argument for this. Research now shows that the paws of assistance dogs are cleaner than the shoe soles of their users, and thus, paw hygiene is no reason to ban assistance dogs from hospitals.http://feeds.feedburner.com/~r/sciencedaily/plants_animals

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A new blindness gene uncovered in a canine study

A study has uncovered a mutation in the IFT122 gene in blind dogs. The gene defect now discovered results in the progressive destruction of photoreceptor cells and retinal dystrophy. IFT122 is a new candidate also for retinal dystrophy in humans. A gene test in support of breeding and diagnostics has been developed based on the finding.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/PH-C4_O-zhU View the source article

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Wolf social group dynamics matter for infectious disease spread, models suggest

By modeling wolves in Yellowstone National Park, researchers have discovered that how a population is organized into social groups affects the spread of infectious diseases within the population. The findings may be applicable to any social species and could be useful in the protection of endangered species that suffer from disease invasion.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/moCGUBjBqbs View the source article

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Detection dogs help generate important data for research and conservation

It is often difficult to find out exactly where the individual species can be found and how their populations are developing. According to a new overview, specially trained detection dogs can be indispensable in such cases. With the help of these dogs, the species sought can usually be found faster and more effectively than with other methods.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/mLxDKMChjr0 View the source article

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How did dogs get to the Americas? An ancient bone fragment holds clues

Researchers analyzed the dog's mitochondrial genome, and concluded that the animal belonged to a lineage of dogs whose evolutionary history diverged from that of Siberian dogs as early as 16,700 years ago. The timing of that split coincides with a period when humans may have been migrating into North America along a coastal route that included Southeast Alaska.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/N2i3DTAOzsU View the source article

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New features of a gene defect that affects muzzle length and caudal vertebrae in dogs

A recent genetic study provides new information on the occurrence of a DVL2 gene defect associated with a screw tail and its relevance to canine constitution and health. The variant was found in several Bulldog and Pit Bull type breeds, and it was shown to result in caudal vertebral anomalies and shortening of the muzzle. The DLV2 variant may also affect the development of the heart.http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/gFGqT4IFfvY View the source article

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