Being a mother is a tremendous accomplishment and one of the most challenging jobs in the world. This applies even in the animal kingdom, where it can be a literal dog-eat-dog world for many species.

A surprising new study has found that blocking reproduction in some mammals may increase their life expectancy by an average ...

Discover more about the egg-laying monotremes of Oceania and the ancient traits they still carry.

Nature is full of evolutionary selflessness. From deep-sea octopuses to certain marsupials, there are animals and insects that reproduce and then die, as their lives can be cut short because they ...