The largest animal ever recorded is the Blue Whale. Learn its record-breaking size (up to 190 tonnes, 91 ft long) and why it ...

Life on Earth started out microscopically small, but it didn’t stay that way for long. Here are five of the biggest creatures to have ever called planet Earth home.

T oday, the largest land animal in North America is the bison, which can clock in at nearly 4 meters (13 feet) in length, and ...

You probably can't imagine anything much scarier than this: the largest animal ever known to have lived on Earth opening its mouth just a few feet away from your boat. It's the mother of all fish ...

Even the largest modern animals, like elephants and giraffes, pale in comparison to some of the gigantic prehistoric creatures that once roamed the Earth. In this video, we explore the longest, ...