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

A new analysis of enigmatic skulls from the Republic of Georgia suggest that Homo erectus wasn't the only human species to ...

The way Sahaleanthropus tchadensis moved has long been debated. The discovery of a small bump on the front of the thigh bone ...

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 ...

While late M-stars are the easiest places to find Earth-sized planets, a new study suggests they are biological dead ends where animal life may never find enough fuel to evolve.

Animals have evolved crab-like bodies at least five times throughout history, a process known as carcinization.

Charles Darwin worried that the fossil record looked strangely abrupt, with complex animals appearing in a geological instant ...

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 ...