Dogs News -- ScienceDaily
Veterinary research and news on dogs as companions, canine health, wolf pack behavior and more. If it is news about dogs, you will find it here!
06/22/2018 09:45 AM
Wolf reintroduction: Yellowstone's 'landscape of fear' not so scary after all
After wolves were reintroduced to Yellowstone National Park in the mid-1990s, some scientists thought the large predator reestablished a 'landscape of fear' that caused elk, the wolf's main prey, to avoid risky places where wolves killed them. But according to recent findings, Yellowstone's 'landscape of fear' is not as scary as first thought.
06/21/2018 09:14 AM
How do horses read human emotional cues?
Scientists demonstrated for the first time that horses integrate human facial expressions and voice tones to perceive human emotion, regardless of whether the person is familiar or not.
06/20/2018 11:59 AM
Dogs understand what's written all over your face
Dogs are capable of understanding the emotions behind an expression on a human face. This study is the latest to reveal just how connected dogs are with people. The research also provides evidence that dogs use different parts of their brains to process human emotions.
06/08/2018 07:00 PM
Dogs can detect agricultural diseases early
Laurel wilt disease has had a devastating effect on the avocado industry in South Florida in past harvest seasons. Early detection can be instrumental in deterring a widespread infection. The use of scent-discriminating dogs has shown to offer the avocado industry legitimate signs of hope in their fight against the spread of the disease throughout their groves.
06/06/2018 04:02 PM
Human encouragement might influence how dogs solve problems
A new study sheds light on how people influence animal behavior. Researchers evaluated the behavior of search and rescue dogs and pet dogs when presented with the same problem-solving task. Both sets of dogs persisted at the task for about the same proportion of time, but the search and rescue dogs were more successful at solving the task when encouraged by their owners.
06/05/2018 09:34 AM
Dogs can be a potential risk for future influenza pandemic
Dogs are a potential reservoir for a future influenza pandemic, according to a new study. The study demonstrated that influenza virus can jump from pigs into canines and that influenza is becoming increasingly diverse in canines.
06/04/2018 08:31 AM
Upgrading the toolbox for Duchenne muscular dystrophy research with a new rabbit model
Research to improve our understanding of Duchenne muscular dystrophy (DMD), and the development of new therapies, has previously relied on mouse models. However, physiological differences between the two species has limited how successfully findings in mice can be applied to humans. A newly developed rabbit model, created through the use of CRISPR/Cas-9 genome editing, exhibits greater clinical similarity to human patients than the mouse models currently in use, with huge potential to advance DMD research.
06/01/2018 12:48 PM
How to achieve a peaceful coexistence between wolves and humans
The persecution of wolves in order to remove them from human settlements has culminated in their near-disappearance in numerous European countries, like Spain and Sweden. Following a recovery of the species, a team of scientists has determined what geographic areas in the Scandinavian country would be most suitable for a redistribution of the specie's range, in the interests of increasing the social acceptance of wolves.
05/29/2018 12:21 PM
Blame the mother's gene: Discovery for a blinding canine eye disease
A new gene for canine congenital eye disease has been identified. Defective RBP4 leads to vitamin A deficiency and abnormal eye development during pregnancy. The study defines a novel recessive mode of maternal inheritance, which may underlie other types of birth defects.
05/24/2018 01:17 PM
Tick bite protection: New CDC study adds to the promise of permethrin-treated clothing
The case for permethrin-treated clothing to prevent tick bites keeps getting stronger. In new experiments, clothing treated with an insecticide known as permethrin had strong toxic effects on three primary species of ticks known to spread disease-causing pathogens in the United States. Exposure to permethrin interfered with the ticks' ability to move properly, making them sluggish and likely interfering with their ability to bite.
05/23/2018 12:32 PM
Cause of E. coli beach closings? Gulls
Researchers have recently published results identifying the major sources of E. coli breakouts on several beaches on Lake Michigan. They have also researched an effective method of reducing the breakouts and the resulting beach closings.
05/22/2018 10:46 AM
How coyotes conquered the continent
Using museum specimens and fossil records, researchers have produced a comprehensive (and unprecedented) range history of coyotes that can help reveal the ecology of predation as well as evolution through hybridization.
05/08/2018 05:06 PM
Hunting dogs may benefit from antioxidant boost in diet
Free radicals, those DNA-damaging single-oxygen atoms, are produced in spades during exercise. Dogs that exercise a lot, like hunting dogs, may need to consume more antioxidants than their less-active counterparts to protect against this damage. But what diet formulation best meets the needs of these furry athletes? A new study provides some answers in a real-world scenario.
05/07/2018 10:18 AM
Carnivores in captivity give birth at the same time of year as those in the wild
Reproductive seasonality is a fixed characteristic of a species -- researchers have now found that carnivores in captivity give birth at the same time of year as their counterparts in the wild. In some species, the gestation period is shortened in order to provide ideal conditions for the offspring, while for others it is extended.
04/09/2018 11:04 AM
How tumors caused by STD quickly regress in dogs
The canine transmissible venereal tumor is a contagious cancer that has spread by mating among dogs worldwide. One unique feature of this cancer is that, for unclear reasons, it regresses spontaneously or a few weeks after a single treatment of radiotherapy or chemotherapy. A study shines a light on this mystery, revealing a key role for the immune system in triggering fast cancer rejection in chemotherapy-treated dogs.
03/26/2018 02:24 PM
Why are whales so big?
Examining body sizes of ancient and modern aquatic mammals and their terrestrial counterparts reveals that life in water restricts mammals to a narrow range of body sizes -- big enough to stay warm, but not so big they can't find enough food.
03/20/2018 09:07 AM
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.
03/16/2018 09:30 AM
Mice change their appearance as a result of frequent exposure to humans
Many tame domesticated animals have a different appearance compared to their relatives in the wild, for example white patches in their fur or shorter snouts. Researchers have now for the first time shown that wild house mice develop the same visible changes -- without selection, as a result of exposure to humans alone.
03/07/2018 08:52 AM
Super sniffer: Dog's nose inspires new gas sensor materials
It is well known that dogs have a better sense of smell than humans. For years, researchers have been trying to develop an artificial detector that is just as good as a canine's nose. Now, one group reports that they were able to mimic a dog's sniffer with graphene-based nanoscrolls.
03/07/2018 08:52 AM
How cats and dogs are consuming and processing parabens
Many households can claim at least one four-legged friend as part of the family. But pets that primarily stay indoors can have increased rates of diseases, such as diabetes, kidney diseases and hypothyroidism compared with those that stay exclusively outside. Some scientists propose that chemical substances in the home could contribute to these illnesses.
03/05/2018 10:15 AM
Ball or stuffed toy -- Do dogs 'know' what they're smelling?
Dogs' excellent sense of smell is well-known, whether it is in the context of searching for people or for contraband substances. However, the question of how dogs understand what they perceive with their sense of smell has largely been unexplored. Scientists have now found evidence that dogs create a 'mental representation' of the target when they track a scent trail.
02/27/2018 08:05 AM
Voice control: Why North Atlantic right whales change calls as they age
Through extensive listening and analysis of whale calls -- which were recorded by a large collaboration of scientists over the past two decades -- researchers were able to pick up the slow gradual changes in sound production in the marine giants as they age. Looking at spectrograms of the calls, which provide visual representations of the sound, the research team could see the progression of vocal characteristics of the animals from calf throughout adulthood.
02/26/2018 11:24 AM
Proof-of-concept study reveals feasibility of eliminating rabies in Africa
Scientists have carried out a mass dog vaccination in Chad and determined its effect on human rabies exposure. The study employed a bio-mathematical method for estimating the transmission dynamics of rabies. The researchers conclude that with political will and the necessary funding, elimination of rabies is possible in Africa.
02/20/2018 11:30 AM
Cracking the genetic code for complex traits in cattle
The global 1000 Bull Genomes Consortium identified the genetic basis for accurately predicting the complex trait of height across cattle and dairy breeds by pooling large genomic datasets and phenotypes collected from 58,000 cattle. The team validated their findings using the DNA of a wild auroch, the ancient ancestor to all cattle and dairy breeds, and, in a world first, demonstrated the genes influencing height in cattle also influence the trait in humans and dogs.
02/07/2018 09:22 AM
Brain training for old dogs: Could touchscreen games become the Sudoku of man’s best friend?
Spoiling old dogs in their twilight years by retiring them to the sofa and forgiving them their stubbornness or disobedience, doesn’t do our four-legged friends any good. Regular brain training and lifelong learning create positive emotions and can slow down mental deterioration in old age. Physical limitations, however, often do not allow the same sort of training as used in young dogs. In a new study, a team of researchers led by cognitive biologists propose computer interaction as a practical alternative. In the training lab, old dogs responded positively to cognitive training using educational touchscreen games.
01/24/2018 12:17 PM
Fat cat? Here's how much to feed to lose weight
Does your cat lay around all day, only getting up to eat and visit the litter box? Chances are, he's overweight. Maybe you've switched to the 'diet' cat food or tried feeding him less, but you might have noticed it's not easy to get that weight off. A new study explains what it takes to get kitty to slim down.
01/19/2018 08:02 AM
Hunting dogs as possible vectors for the infectious disease tularaemia
Tularaemia is an infectious bacterial disease that is life-threatening for rodents, rabbits and hares, but which can also infect humans and dogs. While contact with contaminated blood or meat makes hunters a high-risk group, the frequency of infections among hunting dogs has not been much studied. Researchers have now confirmed a relevant prevalence of infections in Austrian hunting dogs following a serological study in which seven percent of the animals tested positive. This could lead to more intense debate as to whether the often asymptomatic animals represent an additional risk of infection for people.
01/16/2018 01:42 PM
Are amoebae safe harbors for plague?
Amoebae, single-celled organisms common in soil, water and grade-school science classrooms, may play a key role in the survival and spread of deadly plague bacteria. New research shows that plague bacteria, Yersinia pestis, not only survive, but thrive and replicate once ingested by an amoeba. The discovery could help scientists understand why plague outbreaks can smolder, stay dormant for years, and re-emerge with a vengeance.
12/20/2017 06:57 PM
Most dog treats exceed recommended daily energy allowance
Most commercially available dog treats contain a range of undefined ingredients, including sugars, and often exceed the recommended daily energy allowance for treats ('complementary feed'), warn researchers.
11/28/2017 11:02 AM
Dogs mouth-lick to communicate with angry humans
New research has found that dogs lick their mouths as a response to looking at angry human faces, suggesting that domestic canines may have a functional understanding of emotional information.
11/21/2017 08:52 AM
A chicken-flavored electrolyte drink could help sniffer dogs stay hydrated
The first comparison of plain water, electrolyte injections and a chicken-flavored electrolyte drink as techniques for keeping sniffer dogs hydrated when working in hot weather finds that while all are safe and effective, dogs drink more and are more hydrated when given a chicken-flavored electrolyte drink.
11/20/2017 09:48 AM
Smiling human faces are attractive to dogs, thanks to oxytocin
Researchers found that oxytocin made dogs interested in smiling human faces. It also made them see angry faces as less threatening. Associated with affection and trust, the hormone oxytocin is probably a key factor in the interaction between dogs and humans.