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 ...

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.

An endangered animal that was created by cloning gave birth to two healthy offspring at a Smithsonian Institution/National Zoo center in Virginia, in what a federal agency called a conservation ...

Some animals are pregnant for a long time – nine months or more. To have spring babies, they need to fertilize their eggs in ...