While they don't write love letters, there’s no doubt animals form deep and enduring friendships and use many different ways ...

Scientists refine the timeline of sponge origins, showing soft-bodied ancestors likely evolved later than some chemical ...

All life shares a single root buried deep in Earth’s past. Its name? Asgard, and it rewrites what we thought we knew.

During these waves of mass extinction, most vertebrate survivors were confined to refugia, or isolated biodiversity hotspots ...

Some 445 million years ago, life on Earth was forever changed. During the geological blink of an eye, glaciers formed over ...

A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.

Red blood is the exception, not the rule. Evolution has painted it green, purple and white in animals that push physiology ...

In Earth's fossil record, soft-bodied organisms like jellyfish rarely stand the test of time. What's more, it's hard for any ...

Muntjac deer are known as “vampire deer” for their fangs, but their strangest feature lies beneath their eyes.

Encouraged by these results, Dudin, Dey, Guichard, and Hamel launched a close collaboration. Three years later, their work has produced near-encyclopedic insight into hundreds of protist species and ...

This 30-million-year-long gap is actually rather helpful to Darwin. It means that there was plenty of time for the ancestor ...

Study co-author Mason Dean, a biologist at City University of Hong Kong, first noted a regular tiled pattern in micro ...