Prehistoric Facts

Titanoboa was the largest snake that ever lived, measuring in at 13-15 meters in length and weighing about 2,500 lbs.

Helicoprion was a shark-like fish that lived 270 million years ago. It grew up to 4-8 meters long and had a bizarre spiral whorl of teeth on its lower jaw, unlike anything seen in modern animals.

About 60 million years ago, a species of turtle called Carbonemys cofrinii was so large and had such powerful jaws that it could have devoured crocodiles.

Megalodon was the biggest shark that ever existed. It was larger than the average city bus and could bite down with a force between 10.8 and 18.2 tons - enough to crush a prehistoric whale's skull as easily as a grape.

Early American humans hunted car-sized armadillos called glyptodonts and used their massive shells as shelters.

Sifrhippus was a species of horse about the size of a house cat, weighing only 8.5 pounds, and roamed North America around 56 million years ago during the Eocene epoch.

Dire wolves actually existed, living up to 10,000 years ago before going extinct.

Hikers called the cops when they found a body melting out of an Alpine glacier in 1991. Police treated it as a routine mountain casualty. Carbon dating later revealed the man had been dead for 5,300 years. A decade later, X-rays found an arrowhead in his shoulder - he had bled to death in minutes.