In a land as wild and diverse as Australia, it's no surprise that the snakes who live there are among the most dangerous on Earth. Venture into the domain of these spine-tingling serpents and meet venomous vipers with enough toxin to kill 100 people, constricting scrub pythons 28 feet in length, and more.

Saltwater crocodiles, known in their native northern Australia as 'salties,' are highly efficient killing machines. The strongest jaw bite of any living creature and an unusual brain adaptation that literally allows them to sleep with one eye open are just a few of their incredible adaptations. Wade into the tropical wetlands of these prehistoric hyper-carnivores and witness their savagery at close range.