US-Israeli strikes on oil facilities have caused black rain to fall on Tehran, but the black smoke filling the air is likely to be a bigger health risk

Taking a multivitamin every day might slightly slow the rate of ageing, but the extent to which this is relevant to our health is unclear

Some Samoyeds adjust the pitch of their howls depending on the music being played, showing a form of vocal ability they might have inherited from their wolf ancestors

A single femur found in Bulgaria appears to represent an ape or early hominin that walked on two legs before any known African hominin, but the evidence is far from conclusive

SETI has spent decades listening for a sharp, well-defined radio signal that could indicate it was sent by distant intelligent life. Now researchers believe that space weather could distort and blur such signals – meaning SETI has been scanning for the wrong thing

Sonselasuchus cedrus, discovered in fossils from Arizona, was a crocodile relative from the Triassic period that grew into an ostrich-like adult