By the usual logic of evolution, menopause shouldn’t really exist. Even our closest relatives, chimpanzees, experience it ...

Over the course of our long, complicated evolutionary history, humans have seen our brains triple in size, now weighing in at roughly three pounds on average. At some point along the way, humans ...

Although we humans have changed our environment in many ways during the past few thousand years, we are still changed by evolution. We have not stopped evolving, but we are evolving right now in ...