Today, sloths are slow-moving, tree-dwelling creatures that live in Central and South America and can grow up to 2.5 feet long. Thousands of years ago, however, some sloths walked along the ground ...

During ice ages, the large size of ground sloths gave them an advantage against the cold. But 15,000 years ago, their decline accelerated, coinciding with human arrival in America. Slow and ...

Giant ground sloths like these went extinct some 11,000 years ago — near the end of the Ice Age — possibly due to human ... a ground sloth that lived in North America during the Ice Age.

A new study by University of Arizona researchers bolsters the case that fossilized footprints in White Sands, New Mexico, are ...

Sloths weren’t always the slow, tree-hugging creatures we know today. For millions of years, they came in a wild variety of ...

Humans first arrived in South America through a series of extraordinary migrations – and genetic studies now reveal more ...

A new line of evidence is providing further corroboration of the antiquity of fossilized footprints discovered at White Sands ...

The Vela explosion stands out as the most dramatic example, occurring when our planet was emerging from the last ice age around 13,000 years ago.

Ten thousand years after mastodons disappeared, scientists have unearthed powerful fossil evidence proving these elephant ...

A major industrial project is underway in Harvey County, where GAF, North America’s largest roofing manufacturer, broke ground Thursday on a $400 million shingle production facility expected to ...

A study published in the journal Science has found human footprints at the White Sands National Park in New Mexico - showing ...