This disturbing sea turtle mouth video will take you inside the surprisingly scary mouth of one of the ocean's most beloved creatures.

Witness the incredible five-foot-long 'stache that earned John Roy a decades-long reign as the longest mustache world record holder.

Listen to this rare, 130-year-old recording of the famous voice that made the first phone call ever, recently restored by the Smithsonian.

See the world's very first computer and compare its now laughably limited capabilities with those of the amazing supercomputers of today.

See the mysterious "ghost octopus" scientists just discovered in the dark ocean depths off the coast of Hawaii.

Scientists hope to use the DNA from a 12,000-year-old extinct cave lion cub, preserved in ice, to bring this extinct species back to life.

Meet Annie Edson Taylor and learn why the tale behind her infamous stunt is as fascinating as the stunt itself.

After Walter Yeo lost both eyelids in WWI, he underwent one of the world's first plastic surgeries. But was the horrifying treatment worse than the injury?

On Dagen H, the day Sweden switched its driving lane from the left to the right, chaos ensued — and the cost of the change was staggering.

The Seven Lady Godivas, Dr. Seuss' forgotten adult book, was filled to the brim with naked women, peeping toms, and much, much more.

The incredible new bipedal Atlas robot possesses state-of-the-art artificial intelligence, but it still can't defend itself against a hockey stick.