Though most social media challenges are lighthearted, others have caused serious injuries, poisonings, and even deaths.

For centuries, locals have reported seeing a strange apelike beast called the orang pendek stalking the remote forests of Indonesia — and some believe it’s related to a species of early human called Homo floresiensis.

Made up of moss and lichen, this biocrust has proven critical in protecting large sections of the Great Wall from the destructive forces of wind and rain.

From a millionaire's murderous plot to a mummy's curse, discover some of the wildest theories about the Titanic and its ill-fated voyage.

The Perseverance rover collected samples that may indicate there was once microbial life on Mars from a crater that held a massive lake billions of years ago.

Scientists say this discovery has helped them confirm a long-held hypothesis that the Tyrannosaur’s dietary habits changed as it got older.

The little-known songwriter behind one of the biggest hits of the 1940s was also a country-wandering nomad who once lived under the Hollywood sign in Los Angeles.

The baby alligator was born with leucism, a condition similar to albinism that causes a loss of pigmentation.

This pliosaur was about the size of a double-decker bus and was so formidable that scientists are calling it "the T Rex of the seas."

In November 1970, a plane crash killed most of the Marshall football team, the aftermath of which inspired the 2006 film We Are Marshall.