Pet dogs produce a larger volume of tears when they are reunited with their owners than with acquaintances, possibly because of surging oxytocin levels—findings that could be the first evidence of emotional crying in nonhuman animals.

In a citizen science project, thousands of pet dogs are helping scientists to understand what happens to memory and cognition in old age.

Research finds that a dog’s behavior has little to do with its genes.

The genomes of living animals are littered with DNA from long-gone relatives, providing a lens on evolution, past extinctions, and perhaps even solutions to agricultural problems.

Surveillance networks set up to detect outbreaks among pets could one day have public health uses too.  

Two viruses from dogs and pigs were isolated from human patients, but neither was proven to cause severe disease or to transmit to other people.

Pets asked by their owners to pick up an object attached to a mat they were sitting on understood they needed to move in order to complete the task, researchers report.

Good girl, Florin!

Check out the optical illusion that researchers put before canines, finding that fido and master have opposite reactions.

Researchers are using visual tricks to try to better understand canine perception.

The biologist at the University of Sunshine Coast in Australia wants to understand why some animal species adapt well to urbanization, while others fall flat.

Researchers use optical illusions to investigate canine perception.

Researchers report that dogs, pigs, chickens, and ducks did not easily become infected.

An analysis of microwear patterns in fossilized canid teeth supports the theory that early dogs and wolves had distinct diets.

Trained canines are remarkably accurate at detecting a pathogen that has devastated citrus crops.

The tamed foxes, whose appearances changed with breeding, weren’t wild to begin with, say the authors of a new study.