Sloths weren't always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge - up to 4 tons - and when startled, they brandished immense claws. For a long time, scientists believed ...

The timing of the first human arrival in the Americas remains one of the most debated questions in archaeology. Evidence from butchered mammoth bones, stone tools, and ancient footprints suggests ...

The oldest hominin fossils outside of Africa hail from Dmanisi in Georgia, yet the debate over which human species these ...

Robert Zubrin, likely the planet’s leading strategist for landing humans on Mars, and then remaking it in the Earth’s image, predicts SpaceX’s colossal Starship will be the first spacecraft ever to ...

Sloths weren't always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge — up to 4 tons (3.6 metric tons) — and when startled, they brandished immense claws.Video above: ...

Modern humans emerged roughly 300,000 years ago, but our genus Homo is much older. So what's the oldest human species on record? When you purchase through links on our site, we may earn an affiliate ...

Charlie has an undergraduate degree in Forensic Psychology and writes on topics from zoology and psychology to herpetology.View full profile Charlie has an undergraduate degree in Forensic Psychology ...

Benjamin holds a Master's degree in anthropology from University College London and has previously worked in the fields of psychedelic neuroscience and mental health. Benjamin holds a Master's degree ...

SAO PAULO — Sloths weren’t always slow-moving, furry tree dwellers. Their prehistoric ancestors were huge — up to 4 tons — and when startled, they brandished immense claws. For a long time, scientists ...