Researchers have found evidence of butchery marks on the back of an ancient armadillo-like animal, suggesting humans were in South America 20,000 years ago -- earlier than many researchers thought.

North America has had flying squirrels longer than any other part of the world, with the earliest known fossils dating back as far as the Late Eocene era, which was 56 to 33.9 million years ago.

A fossil of an armadillo-like mammal appears to bear cut marks from butchering by humans, suggesting people were living in South America at least 20,000 years ago, even earlier than once thought.

Giant snakes and human figures are two of the motifs found in colossal rock engravings believed to be ancient territorial markers in what’s now South America. CNN values your feedback 1.

Humans Ancient humans’ extraordinary journey to South America. Humans first arrived in South America through a series of extraordinary migrations – and genetic studies now reveal more about ...

The timing of when those marks were made is also significant. Radiocarbon dating indicates these fossils are around 21,000 years old, nearly 6,000 years older than other known archaeological evidence ...

The date that humans arrived in South America has been pushed back to at least 25,000 years ago, based on an unlikely source: bones from an extinct giant ground sloth that were crafted into ...

We know that the extinction of megafauna, in South America at least, was around 10,000 years ago. This is at least 17,000 years after the arrival of the humans who modified the giant ground sloth ...