Every year, gray whales embark on one of nature’s most epic migration journeys. Here’s what we know about it, according to ...

At first glance, this mammal looks like a horse gone terribly wrong. But, in reality, Chalicotherium is far from a botched equid. Here’s why.

Sensitive hearing may have evolved in mammal ancestors far earlier than scientists once believed. By modeling how sound moved ...

Add Yahoo as a preferred source to see more of our stories on Google. SAN DIEGO – In 1959, the Navy stood up its Marine Mammal program here. With one dolphin, researchers set out to study how fast the ...

New research has dramatically expanded the known roster of mammals on Earth. A new review published in the Journal of Mammalogy shows that the number of living mammal species has surged to nearly ...

A study reveals how seasonal brain shrinking helps some mammals survive winter, offering new insights into brain plasticity ...