Treponema pallidum, a microorganism that can cause a deadly sexually transmitted disease in humans, may have a far more ancient lineage than scientists once thought ...

The real revelation, however, came from the men. Men considered a larger penis as an indicator of a rival with both greater ...

A 5500-year-old genome recovered from human skeletal remains in Colombia may give insights into the early evolution of ...

The diversity of water strider species apparently developed as early as the Cretaceous period, much earlier than previously ...

While it shares features with modern humans, H. habilis also has traits that would have given it an advantage in climbing ...

The asteroid that struck the Earth 66 million years ago devastated life across the planet, wiping out the dinosaurs and other organisms in a hail of fire and catastrophic climate change. But new ...

A fossil jaw of a distant human relative was discovered much farther north than previously thought possible, revealing new ...

The legendary “Little Foot” fossil may be an entirely new human ancestor. An international team of scientists led by ...

Earth’s first sponges may have been ghostly, soft-bodied pioneers—ancient animals that evolved long before their skeletons ...

From international gems like Tokyo Story to sci-fi triumphs like 2001: A Space Odyssey, these are the best movie masterpieces ...

The modern world offers an abundance of convenience foods. But our Stone Age physiology isn't built for modern diets, which ...

In the research, published Wednesday (Jan. 7) in the journal Nature, a team of Moroccan and French researchers detailed their analysis of a handful of bones they think represent the last common ...