Rodents make up almost half of all mammals. A study looks at how the evolution of a tiny thumbnail may have propelled their ...

Picture a squirrel eating an acorn. It's holding the nut in its front paws. More specifically, squirrels handle their food ...

Thumbnails likely played a key role in rodents’ evolutionary success. Instead of sharp, pointy claws, several rodent species including squirrels actually have smooth, flat nails on their thumbs. The ...

Learn why many rodents have short nails on their thumb rather than long claws, a trait that has helped them eat and thrive for millions of years.

Rodents may have a rule of thumbnails. Many rodents have curved claws that help the animals climb or dig. But most also have flat nails on their thumbs, researchers report in the Sept. 4 Science. This ...

LONDON -- Eeek! Imagine a rodent that weighed a ton and was as big as a bull. Uruguayan scientists say they have uncovered fossil evidence of the biggest species of rodent ever found, one that ...

All the latest science news on rodent species from Phys.org. Find the latest news, advancements, and breakthroughs.

Two species of tiny rodents have lived undetected in Australia for millions of years — until now. The species were discovered when researchers took a closer look at delicate mice, the continent ...

Researchers have described two ancient species of South American rodents, including the oldest chinchilla, a discovery that substantiates what might be the earliest grasslands in the world. The ...

A bat species may be more likely than a rodent to carry viruses known to jump from other animals to people, a new study suggests. Per species, bats also harbor more known viruses in total than ...

Two new species of delicate mice were discovered in Australia, study says. They are the country’s smallest rodents, weighing 6 grams ...