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!
08/07/2017 02:17 PM
Successful guide dogs have 'tough love' moms, study finds
Much has been written on the pitfalls of being a helicopter parent, one who insulates children from adversity rather than encouraging their independence. A new study seems to back up this finding -- in dogs.
08/07/2017 11:05 AM
Largest-ever study of pets and kids' health finds no link
A large body of research has reported an association between the pet ownership and better health among children. But a new study that is the largest-ever to explore the issue contradicts the common thinking. Researchers did find that children from pet-owning families tended to have better general health, but those differences disappeared when factors such as family income and family housing were considered.
08/02/2017 01:28 PM
The truth about cats' and dogs' environmental impact
US cats and dogs cause 25-30 percent of the environmental impact of meat consumption in this country. The nation's 163 million cats and dogs eat as much food as all the people in France. People should keep their pets -- and keep feeding them meat -- but there may be steps pet owners can take to reduce their environmental impact, says a researcher.
08/01/2017 06:33 PM
Whole genome sequencing identifies cause of zoonotic epidemic
For the first time, researchers have used whole genome sequencing to identify the cause of a zoonotic infection that sparked a national epidemic. Researchers describe their use of whole genome sequencing to determine the cause of a respiratory disease that ripped through a population of native horses in Iceland several years ago.
07/31/2017 10:45 AM
New MRI contrast agent tested on big animals
Experiments in dogs, rabbits and monkeys show the efficacy and biocompatibility of a new MRI/MRA contrast agent in detecting stroke. This T1 MRI contrast agent based on ultrasmall iron oxide nanoparticles could become a possible alternative to clinically used gadolinium-based agents.
07/24/2017 08:16 PM
Dog walking could be key to ensuring activity in later life
Regularly walking a dog boosts levels of physical activity in older people, especially during the winter, a new study has shown. Researchers found that owning or walking a dog was one of the most effective ways to beat the usual decline in later-life activity, even combatting the effects of bad weather. Dog owners were sedentary for 30 minutes less per day, on average.
07/20/2017 10:36 AM
Search and rescue dogs do their jobs despite travel stress
When disaster strikes, you want the very best tools, functioning at their peak. In the case of catastrophic earthquakes, tornadoes, or even bombings in war zones, those tools are search and rescue dogs. But researchers have found that getting dogs to disaster sites can add to the animals' stress.
07/18/2017 10:35 AM
Origin of modern dog has a single geographic origin, study reveals
By analyzing the DNA of two prehistoric dogs from Germany, an international research team has determined that their genomes were the probable ancestors of modern European dogs. The finding suggests a single domestication event of modern dogs from a population of gray wolves that occurred between 20,000 and 40,000 years ago.
07/14/2017 01:04 PM
First genomic biomarkers in extracellular vesicles in veterinary patients
Important biomarkers have been found in extracellular vesicles in dogs with myxomatous mitral valve disease and congestive heart failure. This is the first biomarker discovery based on extracellular vesicles in a veterinary disease. These findings could provide important insight into the molecular basis, diagnosis and therapies for myxomatous mitral valve disease in dogs, as well as mitral valve prolapse, a similar disease in humans.
07/14/2017 06:21 AM
FOXI3 gene is involved in dental cusp formation
Hairless dog breeds differ from other dogs not only by lacking a coat, but also in the number and nature of their teeth. Scientists studied the skulls and teeth of pedigreed hairless dogs from the collection of the Phyletisches Museum of the University of Jena. Thus, they furthered our understanding of the involvement of the FOXI3 gene in the development of teeth - not only in hairless dogs, but potentially also in other mammals including humans.
07/13/2017 02:50 PM
Tracking leishmaniasis in dogs, wild animals and sand flies in Brazil
Researchers have surveyed the environmentally protected area in Campinas, Southeastern Brazil, which has undergone several changes by human action, especially the implementation of condominiums, and revealed that more than one percent of dogs, as well as some opossums and insect species in the area carry the parasite responsible for the most dangerous form of leishmaniasis.
06/28/2017 12:13 PM
Real-time vapor analysis could improve training of explosive-detecting dogs
With a sense of smell much greater than humans, dogs are considered the gold standard for explosive detection in many situations. But that doesn't mean there isn't room for improvement. In a new study, scientists report on a new, more rigorous approach to training dogs and their handlers based on real-time analysis of what canines actually smell when they are exposed to explosive materials.
06/22/2017 09:40 AM
Don't lose sleep over sharing your bed with your pet or kids
About half of all pet owners share their beds or bedrooms with their pets. Studies about co-sleeping are limited to the bedtime arrangements of adults, or parents and their children. Researchers say that society regards both human-animal and adult-child co-sleeping with apprehension. These concerns should be set aside because both practices have their benefits, says the lead author of a new study.
06/21/2017 11:53 AM
Piglets prefer new toys, behavior study shows
We can't help but be tempted by new things. We see it in a child's eyes when she opens a new toy, and feel it every time a new version of the iPhone is released. It turns out our preference for shiny, new things is pretty universal throughout the animal kingdom. Yes, even piglets prefer new toys.
06/20/2017 07:00 PM
Memory for stimulus sequences distinguishes humans from other animals
Humans possess many cognitive abilities not seen in other animals, such as a full-blown language capacity as well as reasoning and planning abilities. Despite these differences, however, it has been difficult to identify specific mental capacities that distinguish humans from other animals. Researchers have now discovered that humans have a much better memory to recognize and remember sequential information.
06/08/2017 11:36 AM
Sensitivity to inequity is in wolves' and dogs' blood
Not only dogs but also wolves react to inequity -- similar to humans or primates, suggests new research. Wolves and dogs refused to cooperate in an experiment when only the partner got a treat or they themselves received a lower quality reward. The sensitivity to inequity is not likely to be an effect of domestication, as assumed so far. It is rather a behavior inherited from a common ancestor.
06/07/2017 09:24 PM
Red and eastern wolves are probably not recent hybrids
A research team is calling into question a 2016 study that concluded eastern and red wolves are not distinct species, but rather recent hybrids of gray wolves and coyotes. In a new comment paper, the team argues the study's genomic data and analyses do not definitively prove recent hybridization -- but rather provide support for the genetic and evolutionary distinctiveness of red and eastern wolves.
06/06/2017 08:50 AM
Dogs help in breast carcinoma research
Cancer of the mammary glands in dogs is very similar to human breast carcinoma. For this reason, treatment methods from human medicine are often used for dogs. Conversely, scientific knowledge gained from canine mammary tumors may also be important to human medicine. Researchers were able to show how similar these tumors are in both dogs and humans.
06/05/2017 08:22 AM
Census shows which mammals survive in forests surrounded by sugarcane plantations
A census of medium and large mammals found in 22 forest remnants surrounded by sugarcane plantations in the state. They found approximately 90% of all the species of mammals expected for São Paulo State but in smaller forest fragments, the researchers recorded only 20 percent - 50 percent of the species expected to occur across the region. This means that up to 80 percent were locally extinct in some cases.
05/31/2017 12:33 PM
Outnumbered and on others' turf, misfits sometimes thrive
Evolutionary biologists have long assumed that when an individual of a species wanders into a different environment than it is adapted to, it will be at a competitive disadvantage compared to natives of the same species which are adapted to that environment. Studying fish in Canada, scientists found the opposite.
05/23/2017 07:37 AM
Wolves need space to roam to control expanding coyote populations
Wolves and other top predators need large ranges to be able to control smaller predators whose populations have expanded, according to a new study. The results were similar across three continents, showing that as top predators' ranges were cut back and fragmented, they were no longer able to control smaller predators.
05/11/2017 11:02 AM
New lyme disease forecast map targets rising tide of ticks
New research offers veterinarians a forecasting map that tells them which parts of the country are most at risk of Lyme disease infections in dogs, which could also help track and predict Lyme disease in people.
05/10/2017 04:48 PM
Pet dogs help kids feel less stressed
Pet dogs provide valuable social support for kids when they're stressed, according to a study by researchers, who were among the first to document stress-buffering effects of pets for children.
05/10/2017 01:07 PM
The family dog could help boost physical activity for kids with disabilities
The family dog could serve as a partner and ally in efforts to help children with disabilities incorporate more physical activity into their daily lives. A case study of one 10-year-old boy with cerebral palsy and his family's dog, found the intervention program led to a wide range of improvements for the child.
04/26/2017 11:30 AM
Novel antibiotic resistance gene in milk
A new antibiotic resistance gene has been found in bacteria from dairy cows. This gene confers resistance to all beta-lactam antibiotics including the last generation of cephalosporins used against methicillin-resistant Staphylococcus aureus. A transfer to S. aureus which is likely according to the researchers would jeopardize the use of reserve antibiotics to treat human infections caused by multidrug-resistant bacteria in hospitals.
04/25/2017 11:48 AM
The evolution of dog breeds now mapped
When people migrate, Canis familiaris travels with them. Piecing together the details of those migrations has proved difficult because the clues are scattered across the genomes of hundreds of dog breeds. However, in a new report, researchers have used gene sequences from 161 modern breeds to assemble an evolutionary tree of dogs. The map of dog breeds, which is the largest to date, unearths new evidence that dogs traveled with humans across the Bering land bridge.
04/24/2017 01:22 PM
How dogs interact with others plays a role in decision-making
Dynamics between familiar dogs may influence their likelihood of learning from each other, new research shows. How dogs interact with others plays a big role in how they respond under conditions that require quick thinking.
04/20/2017 08:37 AM
Tarantula wolf spiders use their lateral eyes to calculate distance
A necessary part of any animal's sense of direction is a positioning system, allowing it to have an idea of the relation between where it is and where it wants to go; this is known as odometry. A new study shows that tarantula wolf spiders (Lycosa tarantula) use their posterior lateral eyes and anterior lateral eyes (they have a total of four pairs of eyes) to establish the distance they have traveled.
04/14/2017 09:58 AM
Sandy the dingo wins world's most interesting genome competition
A wild-born, pure Australian desert dingo called Sandy Maliki has taken out first place in the World's Most Interesting Genome competition. The UNSW-led proposal to have Sandy's DNA decoded beat four other finalists for the Pacific Biosciences SMRT Grant, which provides cutting-edge sequencing of the complete genome of a particularly fascinating plant or animal.
04/07/2017 08:18 AM
You spy with your little eye, dogs can adopt the perspective of humans
Humans are able to interpret the behavior of others by attributing mental states to them (and to themselves). By adopting the perspectives of other persons, they can assume their emotions, needs and intentions and react accordingly. In the animal kingdom, the ability to attribute mental states (Theory of Mind) is a highly contentious issue. Cognitive biologists could demonstrate with a new test procedure that dogs are not only able to identify whether a human has an eye on a food source and, therefore, knows where the food has been hidden. They can also apply this knowledge in order to correctly interpret cues by humans and find food they cannot see themselves.
04/06/2017 01:38 PM
Pet exposure may reduce allergy and obesity
If you need a reason to become a dog lover, how about their ability to help protect kids from allergies and obesity? A new study showed that babies from families with pets -- 70 per cent of which were dogs -- showed higher levels of two types of microbes associated with lower risks of allergic disease and obesity.
04/05/2017 12:10 PM
The redomestication of wolves
Gray wolves provide an important case study for understanding ecosystem effects when apex predators reoccupy their former ranges. These species often rely on anthropogenic food sources, which has broad implications for ecosystem restoration efforts and the possibility of human-wildlife conflict.
04/05/2017 08:07 AM
Raccoon dog represents a more acute risk than raccoon as vector for transmission of local parasites
The raccoon and the raccoon dog are two non-indigenous animal species that have become established in Europe in the past decades. Their increasing abundance has not only made them the most common carnivore species in some countries, but has also made them of interest to parasitologists as potential hosts for diseases. A team of researchers has now analyzed samples from both species in Austria. The raccoon dog, which is more closely related to the fox, was shown to serve as an additional host for local parasites. Like the fox, it represents a risk as a host of zoonotic parasites, such as the fox tapeworm or trichina worms, that are also of relevance for humans. The raccoons sampled, as they mainly originated from fur farms, were still largely pathogen-free.
03/23/2017 02:24 PM
Big-game jitters: Coyotes no match for wolves' hunting prowess
As wolf populations plummeted, the eastern coyote assumed the role of apex predator in forests along the Atlantic Coast. New research, however, shows that the eastern coyote is no match for the wolf. While the eastern coyote can bring down moose and other large prey, it prefers to attack smaller animals and to scavenge.
03/22/2017 09:37 AM
Minitablets help medicate picky cats
Of all pets, cats are often considered the most difficult ones to medicate. Very small minitablets with flavors or flavor coatings can help cat owners commit to the treatment and make cats more compliant to it, while making it easier to regulate dosage and administer medication flexibly.
03/16/2017 10:04 AM
Securing the future of cattle production in Africa
A world-first genetic study of cattle in Africa has revealed clues which could help secure the future of meat and dairy production on the continent. Scientists in England and East Africa carried out the study to help inform future breeding programs and stop indigenous cattle from dying out.
03/14/2017 07:27 AM
Breathtaking gene discovery in Dalmatian dogs
A novel gene associated with acute respiratory distress syndrome (ARDS) in dogs has been uncovered by scientists. The new research on this fatal disease may also help us understand the mechanisms of respiratory diseases in humans.
03/07/2017 09:04 AM
Brain scans of service-dog trainees help sort weaker recruits from the pack
Brain scans of canine candidates to assist people with disabilities can help predict which dogs will fail a rigorous service training program, a study by finds. The study found that fMRI boosted the ability to identify dogs that would ultimately fail service-dog training to 67 percent, up from about 47 percent without the use of fMRI.
02/27/2017 11:51 AM
Dogs, toddlers show similarities in social intelligence
Researchers have found that dogs and 2-year-old children show similar patterns in social intelligence, much more so than human children and one of their closest relatives: chimpanzees. The research could help scientists better understand how humans evolved socially.
02/21/2017 10:07 AM
Significant epilepsy gene discovery in dogs
Research groups have described in collaboration a novel myoclonic epilepsy in dogs and identified its genetic cause. The study reveals a novel candidate gene for human myoclonic epilepsies, one of the most common forms of epilepsy. As a result, a genetic test was developed for veterinary diagnostics and breeding programs.
02/17/2017 03:10 PM
Egg-free surrogate chickens produced in bid to save rare breeds
Hens that do not produce their own chicks have been developed for use as surrogates to lay eggs from rare breeds. The advance -- using gene-editing techniques -- could help to boost breeding of endangered birds, as well as improving production of commercial hens, researchers say.