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

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

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.

The origin of life on Earth becomes even more fascinating and complex as we peer into the mysterious world of viruses.