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Steve heads to Ecuador to dive with the giant manta ray. He also gets a unique view of the biggest baby on earth and rescues a turtle caught in a fishing line.
Steve witnesses a serval hunting in the weird surroundings of a power station at night, puts snakes to the test in a chomp-off and meets a rare spider.
Steve gets strangled by a python on a night-time river expedition, climbs a 40-metre tree and finds out why our thirst for palm oil is threatening bears and orangutans.