A new study has highlighted how reproductive biology and human behavior influence the number of children a person might have. This research, which has identified genetic factors that impact human ...

Millions of years ago, the natural environment was shaping us into the species we are now and humans evolved by natural selection. But as humans continue to evolve, we've turned the notion of natural ...

New research reveals that ancient interbreeding between humans and Neanderthals shaped our modern human DNA - especially on the X chromosome.