For nearly 30 million years, a 2,000-pound beast known as the entelodont ruled a sweeping empire from Mongolia to what is now ...

without making them go extinct.” Some of the most tantalizing clues come from an archaeological site in central Brazil, called Santa Elina, where bones of giant ground sloths show signs of being ...

Fossilized teeth from two ancient megafauna suggest they roamed Brazil 3,500 years ago. The find “opens the door to rewrite South American history.” ...

Roughly half a million years ago, a group of armadillo-like mammals, horses, and sloths met their end in a sinkhole in what ...

The fossil discovered at Sea-Tac Airport is at the Burke Museum, and named for the man who first came across it. Nearly 60% ...

A group of fossil collectors have discovered a mass ice age fossil grave buried in Florida's Steinhatchee River.

Molecular dating has shown that several extinct creatures, such as giant sloths and mammoths, survived in South America much later than previously thought, raising questions about the root causes ...

During the Ice Age, some mammals were particularly large. The giant sloth had adapted very well to the climatic conditions. The reason for its extinction was unclear for a long time - until ...

On the second voyage of HMS Beagle, Charles Darwin collected thousands of plant, animal, rock and fossil specimens, including 13 species of fossil mammals. Four of these were species of ground sloth, ...

The extinct giant ground sloths were some of the only mammals that had digestive systems large enough to process the huge avocado seeds whole. They feasted on the fruit and then dispersed the ...

Their prehistoric ancestors were huge — up ... the first humans to arrive in the Americas soon killed off these giant ground sloths through hunting, along with many other massive animals like ...