Roughly 425 million years ago, in the warm seas over what is now southern China, there lived a meter-long bony fish with jaws ...

The mysterious disappearance of a retired Air Force major general with deep expertise about UFOs who went missing without a trace Feb. 28 constitutes a “grave national security crisis,” according to ...

Investigators partnered with a nonprofit genetic genealogy analysis organization to identify the man who the remains belonged ...

Neil McCasland, 68, was reported missing after leaving his Albuquerque, N.M., home on foot, according to local authorities.