World's Deadliest

Tiger takes on tiger, alligators go jaw to jaw and lions face off against hyenas in a ferocious look at nature's eternal war. (S6, ep 1)

Huge crocs get ready to gorge as the great migration crosses the Mara. Anacondas mean danger by the river too, as they lie waiting to crush their victims alive. (S6, ep 2)

From polar bears and leopard seals to great whites and wolves, these snowbound predators can kill no matter what the conditions. (S6, ep 3)