A quiet reef can suddenly come alive with moving shadows. One by one, sharks start to appear along the edge of South ...

Rabbits can often escape a fox by exploding sideways before it can correct its path , rather than outrunning it in a straight ...

Some rescue stories stay with people because the transformation seems almost impossible. A stray dog whose face has softened ...

The scales move and flex with the movement of the animal, giving a layered armor effect that is more reptilian than mammalian ...

What surprises many safari visitors most is how fast a calm river scene can change once a hippo has decided something crossed ...

This little hunter is after one of the world’s most despised insects.

One bird learns something, and then the whole flock seems to know the trick. Some birds learn by watching each other so fast ...

The beaches we enjoy today were once ancient oceans.