An international research team has uncovered 270-million-year-old fossil tracks belonging to a dog-like predator ...

“The orange mutation affects a gene on the X chromosome. In mammals, males have a single X chromosome and therefore one copy ...

It's been a doozy of a year for marine mammals, who have been dying in record numbers along the California coast. Volunteer ...

The U.S. will tighten regulations on seafood imports starting in 2026 to protect marine mammals from harmful "bycatch" ...

Sexual behavior is one reason why female mammals typically live longer than their male counterparts, according to a new study ...

Their fur is so soft it almost led to their extinction, but otters’ recovery has been a boon to Pacific kelp forests, a key ...

Whales and dolphins use sound to communicate, navigate and detect prey, making them particularly vulnerable to noise ...

A new book dives into the evolutionary history of mammals. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Shortly after dinosaurs got their ...

Earth's waters host diverse mammals like dolphins, whales, and manatees. These creatures possess unique adaptations for ...

Dall's porpoise (Phocoenoides dalli) is a species of porpoise found only in the North Pacific. (Getty) In the early 2000s, a fungus infected hundreds of animals and people in British Columbia and ...

Mammals' backbones are weird. They're much more complex than the spines of other land animals like reptiles. Scientists wanted to find out how these complex backbones evolved in the first place. They ...

The small mammals building at the Milwaukee County Zoo will be closing by the end of 2025. The closure is part of a strategic plan focused on the future of the zoo. Animals in the small mammals ...