Our earliest mammalian ancestors avoided the dominant dinosaurs by only coming out at night and having uniformly dark, ...

The new research is the first to look back at early mammals in full color. Using advanced fossil imaging methods and a ...

More than half of all mammal species are rodents, a group that includes squirrels, hamsters, mice and guinea pigs. Rodents have long, sharp front teeth that they use for biting and gnawing.

Identifying laboratory rodents as a group may be sufficient if all the animals are to receive the same treatment and/or manipulation and if individual variations in response are not to be recorded ...

The central rock rat is one of Australia's rarest animals, and experts feared it had gone totally extinct a few years ago.

“Save a Swamp, Sauté a Nutria,” the agency said. Nutrias can help boost the flavor profile of common dishes or be used as a ...