Learn about the archaeological site of 'Ubeidiya, now confirmed as one of the oldest areas that humans occupied outside of ...

A previously unknown virus may be the key to assessing the risk of colorectal cancer and improving diagnosis.

Learn how cleaner wrasse used a mirror and even dropped food to test their reflections, a behavior linked mostly to mammals.

Learn more about “boomerang” earthquakes and why scientists say they may be more common than previously believed.