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

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

One of the defining breakthroughs in mammal evolution was the rise of highly sensitive hearing. Modern mammals rely on a ...

Whales, dolphins and other marine mammals are highly social, but those social ties can also help diseases spread through ...

For most mammals, fur is essential for survival. Humans lost it anyway and didn’t just survive, they adapted. Fossil and ...

Plenty of islands claim to be Galapagos-like, but are they really? These gorgeous, must-visit destinations have much in ...

Quick, imagine an animal tongue. What came into your mind? The flicking forked tongue of a snake? A cow licking a block of ...

A new study confirms that dolphins and orcas have reached a "point of no return" in their evolution, making a return to land ...

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

A surprising new study has found that blocking reproduction in some mammals may increase their life expectancy by an average ...

Everything is a puzzle at the end of the day.

Long before big cats, terror birds reigned as apex predators. Here’s how these flightless birds hunted, and why they went ...