The Amazon's jungles reverberate with growls and grunts of creatures hidden in the trees and vying with one another for survival.

Asia is the largest most populated continent on earth. Life here is harsh. To survive, animals here have evolved into the toughest of the tough.

We reveal in stunning detail why Africa's deadly dozen is described as one of the deadliest.

We reveal in stunning detail why North America's deadly dozen is described as one of the deadliest.

We reveal in stunning detail why Central America's deadly dozen is described as one of the deadliest.

We reveal in stunning detail why Australia's deadly dozen is described as one of the deadliest.

They are Asia's Deadly Dozen. Journey into their domain for a close look at their lethal abilities and see what happens if we get in their way.