Modern humans are evolutionary survivors, thriving generation after generation while our ancient relatives died out. Now, new research into our brain chemistry suggests that an enzyme unique to Homo ...

SAO PAULO (AP) — 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. For ...

Imagine a world where colossal creatures roamed the land, coexisting with early humans. This was the reality in the Americas, where giant sloths and mastodons thrived alongside our ancestors for ...

On a small Indonesian island, a tiny human species once thrived in caves above a lush river valley, only to vanish as the landscape around them withered. New research argues that a brutal, 6,000-year ...

This innovative approach combines climate data, archaeological evidence, and population dynamics to simulate how Neanderthals moved across the landscape. The model reveals that by the time ...

Modern humans have uniquely small and flat faces, especially compared with our Neanderthal cousins' notoriously robust faces and large noses, but the reason for this difference has eluded ...

Two of the traits that set modern humans apart from non-human primates are taller stature and a higher basal metabolic rate. Researchers have identified a genetic variant that contributed to the ...

Scientists have long debated how modern humans evolved. For decades, most researchers agreed that Homo sapiens came from one ancestral group in Africa, dating back 200,000 to 300,000 years. But new ...

Ideas about the global dispersal of Homo sapiens have changed over time. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Modern humans now ...