Many mammals have fur the color of brown and black. Why don't they have more exotic colors, like purple and neon pink?

National Geographic estimates there are between 50 billion and 430 billion birds populating the planet, outnumbering humans by up to approximately 50 times. Spread across 9,700 species, according to ...

A plantation worker photographed this new genus of mammal in New Guinea, thought to have been dead for 6,000 years.

From whale songs to lion roars, animals have evolved to stretch their voices across distances so that friends—and sometimes foes—can hear them. Each sound is coded with messages like "Come here!" ...

Following news this week of a southern sea otter's death from avian flu, experts are now saying the disease's outbreak has infected more species of marine mammals along the San Mateo County coast.

Despite their underwater habitat, whales are mammals. Mammals are not solely terrestrial; some, including whales and dolphins, are fully aquatic the University of Michigan Museum of Zoology reports.

Mammal evolution has been flipped on its head, according to new research that suggests marsupials are the more evolved mammals. By estimating how the common ancestor of mammals reproduced and ...

Homo sapiens of the American persuasion plan to spend $26 billion on Valentine’s Day gifts this year, an outpouring of resources signaling love, devotion, desire and financial fitness. While the form ...

Baby dinosaurs weren’t coddled like lion cubs or elephant calves—they were more like prehistoric latchkey kids. New research ...

After H5N1 bird flu was detected in elephant seals gathered at Año Nuevo State Park, other marine mammals have also succumbed, including a sea otter and sea lion. So far, only animals in San Mateo ...

No, birds are not mammals. Rather, they are avians. Mammals are characterized by their milk glands, hair, vertebrae and their birthing of live young (being viviparous), according to Britannica.