A 400,000-year-old giant sloth femur was discovered in Argentina, preserving rare muscle marks that reveal how these Ice Age ...

For more than a century, stories have circulated about unusually large human skeletons discovered in ancient burial sites. Old newspaper reports and historical accounts describe massive bones that ...

Reports that archaeologists have uncovered the remains of people nearly ten feet tall in a Nevada cave have pushed a long‑running fringe legend into the center of viral attention. The claims lean on a ...

Researchers in Costa Rica have unearthed fossils from a mastodon and a giant sloth that lived as many as 40,000 years ago, officials announced Friday, calling it the biggest such find here in decades.

When the asteroid ended the age of non-avian dinosaurs, it cleared ecological space on a global scale. Small survivors ...