"These extinct early mammals had distinct lifestyles, ranging from ground-dwelling and burrowing to gliding through the ...

Shaggy black fur and large size distinguish this animal from all other Adirondack mammals. The black bear has a short, inconspicuous tail. The body and legs are short. The head is broad with erect, ...

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

Both black and white rhinoceroses are actually gray. They are different not in color but in lip shape. The black rhino has a pointed upper lip, while its white relative has a squared lip.

Ancient mammals that lived in the time of dinosaurs were mostly the same dark-brown colour, according to a new study providing clues about how those mammals evolved as they faced giant predators.

A joint research team from China and abroad has for the first time found that mammaliaforms from the Jurassic and Cretaceous ...

The black-footed ferret could also be called the black-eyed ferret because of the distinctive “stick-em up” mask that adorns its face. The tan ferrets also have black markings on their feet ...

Melanin comes in two variants – black-brown and yellow-red – and the shape of melanosomes varies according to their ...

The black-tailed prairie dog is an intelligent, sociable rodent that's a keystone species in the prairie ecosystem it calls home. This precocious little mammal is perfectly suited to its environment, ...

The American black bear is a medium-sized bear native to North America. It is the continent’s smallest and most widely distributed bear species. Black bears are omnivores with their diets ...

This 2-foot-long, black-masked member of the weasel family once occurred in central grasslands and basins from southern Canada to Texas but is now one of the most endangered mammals in North America.

While black bears often steal the spotlight for their seasonal slowdown, other mammals — from raccoons and skunks to opossums — also shift gears to survive. “There’s low temperature and access to food ...