A plague that swept through Eurasia for 2,000 years – millennia before the Black Death of the Middle Ages – has only ever ...

Animals that hibernate are incredibly resilient. They can spend months without food or water, muscles refusing to atrophy, body temperature dropping to near freezing as their metabolism and brain ...

Sediment DNA also traces life outside the cave. Predators dragged prey into sheltered chambers, humans left waste behind. By following changes in human, animal and microbial DNA over time, researchers ...

Diseases started jumping from animals to humans at least 6,500 years ago, researchers found in a new study of ancient DNA. After analyzing ancient DNA from 1,313 prehistoric humans from Europe and ...

Thousands of years ago, ancient humans undertook a treacherous journey, crossing hundreds of miles of ice over the Bering Strait to the unknown world of the Americas. Now, a new study led by the ...