Partula snails all but vanished from Polynesia after the arrival of a carnivorous foreign snail. But a global alliance of zoos has worked to bring them back.

A single night of spring rain can transform a quiet garden into a slow-moving feast. Leaves that looked flawless yesterday ...

We all love an afternoon nap, but did you know that for some animals, it is literally a lifesaver? This is a very special type of nap called estivation, and several different types of animals, ...