See the before and after, and share in his joy in the recovery room.

Not only have MIT biologists discovered the very first animal on Earth, they've found that it existed 250 million years earlier than previously thought.

When Russian explorer Leonid Rogozov needed an appendectomy in the middle of Antarctica, he was the only doctor on site. So he did it himself.

When this Australian couple stepped out of their camper, they probably didn't expect to see a 17-foot python eating a kangaroo whole.

Salmon sometimes have trouble getting over today's manmade dams. Whooshh Innovations' salmon cannon can provide an interesting solution.

Here's the unexpected tale of exactly how and why future U.S. president Teddy Roosevelt ended up riding that moose through a lake.

Its overcrowded tunnels make it difficult to imagine but the old Penn Station was America's most treasured train station. Now, New York wants to bring it back.

This is how gravitational waves reveal ripples in spacetime, prove Einstein's theories right, and illuminate the mysteries of how the universe began.

The Ku Klux Klan lived a much different life in the 1920s, apparently a life that involved riding Colorado's amusement park Ferris wheels.

New video of the biggest great white shark ever caught on camera, nicknamed "Deep Blue," has been released -- and it's truly astounding.

Around one-fifth of the world's population participates in the event, which began on Sunday.