Nature's Deadliest

From the crushing jaws of the spotted hyena, to the lethal venom of the Black mamba, we examine the weaponry of some of the most powerful animals on the planet.

Brazil's dark and steamy Amazon harbors some of the most frightening animals known to humankind.

Killing techniques come in many varieties in the African wild: from the tiny black widow to the massive hippo that's responsible for the most human deaths.