After capturing the first brain images of two alert, unrestrained dogs last year, researchers have confirmed their methods and results by replicating them in an experiment involving 13 dogs. The research showed that most of the dogs had a positive response in the caudate region of the brain when given a hand signal indicating they would receive a food treat, as compared to a different hand signal
Mating with more than one male increases reproductive success for female prairie dogs, despite an increase in risks such as increased susceptibility to predation and increased exposure to diseases and parasites. So why would a female prairie dog take the risk? The answer is simple: female prairie dogs that mate with two or more males rear more offspring than those that mate with only one.
Wolves can learn from observing humans and pack members where food is hidden and recognize when humans only pretend to hide food, reports a new study. The findings imply that when our ancestors started to domesticate dogs, they could have built on a pre-existing ability of wolves to learn from others, not necessarily pack members.
Research conducted by animal behaviour experts challenges the basis of breed specific legislation designed to protect the public from ‘dangerous’ dogs.
Research has revealed that guarding dogs can significantly reduce conflict between livestock and large carnivores, such as cheetahs or leopards, helping to reduce unwarranted killing of endangered species in South Africa.
A team of scientists has shown how the environment shapes learning and memory by training locusts like Pavlov’s dog to associate different smells with reward or punishment.
Wolves likely were domesticated by European hunter-gatherers more than 18,000 years ago, and gradually evolved into dogs that became household pets, biologists report.
Subtle differences in the shape of proteins protect some and endanger others. All mammals make this same protein called amylin, and it only differs a little bit from species to species. In the mammals that get type 2 diabetes, the amylin proteins aggregate in the pancreas into plaque that kills the cells around them, thereby ceasing all insulin production.
Veterinary scientists have developed a diagnostic test that can detect emerging strains of canine parvovirus, a severe --- and potentially fatal -- virus that affects dogs.
The factors involved in VL transmission are poorly understood, especially in urban and densely populated counties. Researchers in Brazil have conducted studies on urbanization and expansion of VL in Belo Horizonte, capital of Minas Gerais State.
You might think a wagging tail is a wagging tail, but for dogs there is more to it than that. Dogs recognize and respond differently when their fellow canines wag to the right than they do when they wag to the left. The findings show that dogs, like humans, have asymmetrically organized brains, with the left and right sides playing different roles.
It has long been believed that coyotes were incapable of taking down an adult moose, but researchers have recently discovered that eastern coyotes and coyote x wolf hybrids (canids) have preyed on adult moose in central Ontario.
Researchers have found that microchimerism, a condition where some people possess a small number of cells in their bodies that are not genetically their own, can be passed from a female dog to her offspring while they are still in the womb. Microchimerism most often occurs when a mother gives birth to a child. In some cases, cells from that child are left in the mothers' body and continue to live,
A single injection eased severe, chronic pain caused by late-stage bone cancer in dogs, according to a study. Dogs with bone cancer that received a neurotoxin injection had significantly more pain relief than those that got standard care without the injection.
Researchers have demonstrated how remote-monitoring of a dog's behavior can be used to alert family and carers that an elderly relative is struggling to cope.
Gastric dilatation-volvulus (GDV), or bloat, is one of the leading causes of death in dogs, second only to cancer for some breeds, and the number one killer of Great Danes. Despite its prevalence, the cause of bloat is unknown. A multi-disciplinary team is investigating the hormones motilin and ghrelin for the cause of the disease—and better treatments.
Researchers have identified a mutation in ITGA10 gene, causing chondrodysplasia in two dog breeds, the Norwegian Elkhound and the Karelian Bear Dog. The research revealed a new chondrodysplasia gene in dogs, and a candidate gene for human chondrodysplasias. The finding has implications on bone biology as well as canine health. A genetic test can now be used to identify mutation carriers in the two
Designers of social robots, take note. Bring your dog to the lab next time you test a prototype, and watch how your pet interacts with it. You might just learn a thing or two that could help you fine-tune future designs. So says researchers who found that 'man’s best friend' reacts sociably to robots that behave socially towards them, even if the devices look nothing like a human.
In an advance toward providing mosquito-plagued people, pets and livestock with an invisibility cloak against these blood-sucking insects, scientists today described discovery of substances that block mosquitoes’ ability to smell and target their victims.
That "best friend" can get a bit tiresome, all that rolling over, shaking paws, long walks and eating every crumb of food off the floor. But, what if there were a way to command your dog with a remote control, or even via your smart phone...or even without hands?
Scientists have identified a novel locus for glaucoma in Dandie Dinmont Terrier. The locus on canine chromosome 8 includes a 9.5 Mb region that is associated with glaucoma. The canine locus shares synteny to human chromosome 14, which has been previously associated with different types of human glaucomas. However, the actual glaucoma causing mutation in Dandies remains unknown.
Researchers have identified a genetic mutation causing progressive retinal atrophy (PRA) in the Phalene and Papillon dog breeds. PRA is one of the most common causes of blindness in dogs and in human. This study highlights the shared genetic etiology of many canine and human genetic disorders, and provides new tools to investigate PRA mechanisms while the beloved dogs benefit from genetic testing.
When a member of the wolf pack leaves the group, the howling by those left behind isn't a reflection of stress but of the quality of their relationships. So say researchers based on a study of nine wolves from two packs living at Austria's Wolf Science Center.
Two researchers have provided the first video-based observation of swimming and diving apes. Instead of the usual dog-paddle stroke used by most terrestrial mammals, these animals use a kind of breaststroke. The swimming strokes peculiar to humans and apes might be the result of an earlier adaptation to an arboreal life.
Rare Amur tigers in Russia are succumbing to infection with canine distemper virus, a pathogen most commonly found in domestic dogs, according to new research.
Dogs yawn contagiously when they see a person yawning, and respond more frequently to their owner's yawns than to a stranger's, according to new research.
Training of dogs to recognise explosives could be quicker and more effective following research by animal behaviour experts.
Playful as a puppy even at 730 pounds, Nemo, a rescued black-and-white Hampshire pig, became a porcine pioneer after lymphoma struck. Undergoing a novel care plan, he became a teaching case for veterinary oncologists at the Cornell University Hospital for Animals, paving the way to combat cancer in large animals. Nemo is believed to be the first pig to be treated for lymphoma. The pig's medical tr
A gene related to neural tube defects in dogs has for the first time been identified. The gene may be an important risk factor for human neural tube defects, including anencephaly and spina bifida.
A surprisingly large number of dogs suffer from hyperadrenocorticism. The symptoms are caused by excessive amounts of hormones – glucocorticoids – in the body. Unfortunately, though, diagnosis of the disease is complicated by the fact that glucocorticoid levels naturally fluctuate and most methods for measuring the concentration of the hormones in the blood provide only a snapshot of the current s