An analysis of a 1.5 million-year-old vertebra from a human relative living in what is now Israel suggests that ancient ...

Yawning is a complex reflex that has puzzled scientists for years. While many believe yawning is a sign of oxygen deprivation ...

If there were such a thing as a time machine that we could use to journey 5,000 years into the past, we would find a very different world to the ...