In mammals—including us humans—sperm are surprisingly picky about temperature, thriving best in conditions a few degrees ...

The research on metformin and human longevity is scant, but that hasn’t stopped some people from experimenting with it.

Primatologists weigh in on the debate that has ignited the internet: Could 100 humans beat a single silverback gorilla in ...

William Goodge is captivating the world with his outrageous attempt to break the record for running thousands of kilometres ...