A tearful black dog looks at the camera
Dogs Cry Tears of Joy: Study
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.
Dogs Cry Tears of Joy: Study
Dogs Cry Tears of Joy: Study

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.

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.

dogs
An Italian greyhound curled up by a window
Opinion: A Dog Has Caught Monkeypox from One of Its Owners, Highlighting Risk of the Virus Infecting Pets and Wild Animals
Amy Macneill, The Conversation | Aug 19, 2022
The monkeypox virus can easily spread between humans and animals. A veterinary virologist explains how the virus could go from people to wild animals in the USand why that could be a problem. 
old dog smiles at camera
Inside the Brains of Aging Dogs
Lesley Evans Ogden, Knowable Magazine | Aug 1, 2022
In a citizen science project, thousands of pet dogs are helping scientists to understand what happens to memory and cognition in old age.
Dog Ancestry Provides Clues to Ancient Human Activities
Dog Ancestry Provides Clues to Ancient Human Activities
Niki Spahich, PhD
Researchers combined evidence found in dog genomes with physical materials recovered from archeological sites to discover factors behind major societal changes.
Dogs of various breeds running in the field.
They’re All (Potentially) Good Dogs
Natalia Mesa | Apr 29, 2022
Research finds that a dog’s behavior has little to do with its genes.
tibetan mastiff with ghostly wolves in the background
The Extinct Species Within
Christie Wilcox | Aug 6, 2021
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.
Dogs under blanket together stock photo
A Nose by Any Other Name: Tracking the Scent of Tumor Metabolic Waste
Iris Kulbatski, PhD
The unique odor profiles of tumors can be used to develop diagnostic sensing tools.
a kitten looks up at a person listening to its chest with a stethoscope
Tracking Companion Animal Disease
Anthony King | Aug 3, 2021
Surveillance networks set up to detect outbreaks among pets could one day have public health uses too.  
A stylized, computer-generated 3D render of a virus cell that looks similar to SARS-CoV-2
Two New Coronaviruses Make the Leap into Humans
Amanda Heidt | May 20, 2021
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.
Dogs Pass Test for Awareness of Their Own Bodies: Study
Catherine Offord | Feb 18, 2021
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.
dogs, olfaction, smell, prostate cancer, volatiles, diagnosis, disease, canine
Watch a Trained Pup Detect Prostate Cancer From a Urine Sample
Asher Jones | Feb 18, 2021
Good girl, Florin!
Are You Smarter Than Your Dog?
The Scientist Staff | Jan 11, 2021
Check out the optical illusion that researchers put before canines, finding that fido and master have opposite reactions.
A Dog’s View of Optical Illusions
Catherine Offord | Jan 1, 2021
Researchers are using visual tricks to try to better understand canine perception.
Celine Frere Chases Dragons and Koalas to Learn How They Adapt
Max Kozlov | Jan 1, 2021
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.
Infographic: What Do Dogs Perceive?
Catherine Offord | Jan 1, 2021
Researchers use optical illusions to investigate canine perception.
a photo of a dog, a cat, and a ferret
Cats, Ferrets Susceptible to SARS-CoV-2: Study
Shawna Williams | Apr 2, 2020
Researchers report that dogs, pigs, chickens, and ducks did not easily become infected.
Image of the Day: Protodogs
Amy Schleunes | Mar 4, 2020
An analysis of microwear patterns in fossilized canid teeth supports the theory that early dogs and wolves had distinct diets.
Image of the Day: Dog Detectives
Amy Schleunes | Feb 5, 2020
Trained canines are remarkably accurate at detecting a pathogen that has devastated citrus crops.
Famous Fox Domestication Experiment Challenged
Emily Makowski | Dec 4, 2019
The tamed foxes, whose appearances changed with breeding, weren’t wild to begin with, say the authors of a new study.
JHU Researchers Harmed Dogs, Animal Rights Group Argues
Ashley Yeager | Aug 15, 2019
Stop Animal Exploitation Now issues a federal complaint against Johns Hopkins scientists, saying they messed up surgeries on nine animals.