A study of 894 dogs reveals how changes in DNA may help explain differences in aging, lifespan, and health between large and ...

Dogs come in all shapes and sizes, but as any puppy aficionado knows, they are always cute—no matter how big or small—even when a dog tall enough to drink from the kitchen sink thinks he's a lapdog.

Scientists finally know why large dogs age faster and the answer involves self-replicating jumping genes.

Some smaller dogs can live until they're 15 years old or even older, but bigger dogs don't usually have as long. According to ...

Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results.

Across mammals, bigger species like elephants usually live longer lives than smaller ones like mice, but within a species that pattern can reverse. Earlier comparisons across species linked certain ...