It's not that Steve Backshall has a death wish. Quite the opposite, actually. He lives for adventure, and his mission to come as close as possible to 60 of the world's most deadly animals is a brazen way to challenge himself. The naturalist and wildlife expert journeys to five continents and encounters a wide range of mammals, birds, reptiles and insects -- some familiar, others quite unusual -- including Baja rattlesnakes, tarantula hawk wasps, Humboldt squid, wolf eels and flesh-eating cockroaches. Backshall also tries to mimic the animals to see if he can match their lethal skills, such as hanging like a bat or flying down a zip wire to emulate a fish eagle.