A major challenge in the study of human prehistory is linking cultural artifacts in the archaeological record to the human ...

Named Panthera pardus burgtonnae, the newly-identified leopard subspecies roamed Europe during the Eemian interglacial period ...

A large review of clinical trials published this week in the journal PAIN suggests that melatonin — the over-the-counter sleep supplement taken by millions of people — may offer meaningful relief for ...

Urokodia aequalis, an early Cambrian marine predator from the Chengjiang biota of China, preserves the earliest known evidence of chelicerae -- the pincer-like structures that later evolved into the ...

A small fossil collected on an Antarctic island more than four decades ago is a tail vertebra of a titanosaurian sauropod dinosaur that roamed Antarctica roughly 83 million years ago, according to a ...