From the great white shark to the Nile crocodile, see how some of nature's apex predators have established their positions on top of the food chain.
Tread with caution - hidden beneath logs, in trees, burrows or long grass are creatures so deadly that one bite is enough to take down an adult elephant.
Small, slight and out of sight - the world is hard for those who do not have size on their side. Though they are small, these little creatures are seasoned in survival.