These strange, long-necked Triassic beasts were able to coexist because they chowed down on different prey.
Ramps built on some ancient Greek temples were likely placed there to aid the disabled, elderly, pregnant and very young.
A big earthquake at Ridgecrest could trigger the Garlock fault, which would in turn trigger the San Andreas.
A DNA analysis of 807 Polynesians and Native Americans suggests that their ancestors were bedfellows long ago.
Here's how a forensic artist recreated the likeness of a Stone Age man whose skull was found on a spike.
A "Godzilla dust cloud" from the Sahara Desert that's heading toward the United States this week is the largest and most concentrated dust cloud of its kind in the past 50 years.
An annular eclipse and the summer solstice are both happening this weekend. But don't worry, it's not the end of days.