Learn about three species facing extinction due to an alarming decline in their populations and the unique reasons for that ...

Rising H5N1 bird flu cases in the U.S. prompted the CDC to study the virus in ferrets, revealing it may have the potential to ...

Humans aren’t the only natural born endurance runners out there. Here’s a look at the animal kingdom’s finest long-distance athletes ...

A recent study finds that color vision evolved in animals more than 100 million years before the emergence of colorful fruits and flowers. And there has been a dramatic explosion of color signals in ...

Pando is a giant aspen clone in central Utah that has been regrowing parts of itself for up to 80,000 years — but new threats ...

It’s a moment most house-proud dog owners dread. But now Harvard scientists may have discovered the real reason animals shake ...

Imagine a robot that can detect scents in the air and track down their sources as efficiently as a dog or a mouse. If ...

Sleep is one of the most mysterious, yet ubiquitous components of our biology. It has been described in all major groups of animals, including worms, jellyfish, insects or cephalopods, and in all ...

With millions of mice and rats in US labs alone, scientists can learn a lot of information from their scurrying test subjects ...

A bat gym shows that vampires are more like some insects, burning amino acids from blood proteins rather than the carbs or fats other mammals rely on.

The "RNA world" hypothesis proposes that the earliest life on Earth may have been based on RNA—a single-stranded molecule similar in many ways to DNA—like some modern viruses. This is because, like ...