Bill Gates posted the graphic below to his blog on April 25. It shows how many people are killed by different species of animal every year. The big red block at the bottom might surprise you ...

Advances in genetics in recent years has revealed that many apparently exclusive pairs in fact sometimes mate with individuals other than their partner, but social monogamy is widespread.

Across the tree of life, animals use sound and other vibrations to glean valuable sensory information about their environments even before they are born. Amanda was an associate editor at The ...