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

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

Dolphins, whales and seals are highly social animals. Many live in groups, form long-term relationships, and repeatedly ...

Discover the List of 9 Animal Names Starting with V. From the critically endangered Vaquita to the high-flying Vulture, ...

Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth that regrow throughout their lives. But changes in the ocean’s chemistry could put those weapons at risk.

Some creatures just seem to have won the genetic lottery. You know the ones. They’re effortlessly cool, impossibly beautiful, ...

Clouds, smoke and fog may darken the skies, but sediment, algae blooms and organic matter can turn day into night on the ...

Cheetahs once roamed across most of Africa and parts of Asia, but now live in just 9% of their previous range and haven't ...