Steve Backshall discovers wildlife in extreme environments. Steve pushes deeper into Papua New Guinea's secret world by climbing into a vast and unmapped cave system. Show more

Steve Backshall discovers wildlife in extreme environments. Steve travels to Guyana and is the first person ever to look for creatures at the bottom of a waterfall. Show more

Steve Backshall discovers wildlife in extreme environments. Steve ventures into Venezuela to undertake one of the deadliest adventures he'll ever face. Show more

Steve Backshall discovers wildlife in extreme environments. Steve travels into the heartland of Papua New Guinea, a lost world full of strange wildlife. Show more

Steve Backshall discovers wildlife in extreme environments. Steve joins a group of scientists, naturalists and film-makers all united in saving Guyana's wildlife. Show more

Steve Backshall discovers wildlife in extreme environments. Steve continues his adventures in Venezuela to reach the summit of a totally unexplored mountain. Show more

Steve Backshall discovers wildlife in extreme environments. Steve searches for new animals on Mount Bosavi, an ancient volcano that last erupted 200,000 years ago. Show more

Steve Backshall discovers wildlife in extreme environments. Steve takes on his most deadly challenge in the swamps of Botswana's Okovango Delta. Show more

Steve Backshall discovers wildlife in extreme environments. Steve goes to California and the Caribbean in search of the super-giants of the seas. Show more

Steve Backshall discovers wildlife in extreme environments. Steve's quest for the unexplored parts of the Borneo rainforest take him deep into a sinkhole. Show more

Steve Backshall discovers wildlife in extreme environments. Steve Backshall heads to Bhutan in search of wild tigers and joins a camp of scientists and film-makers. Show more

Steve Backshall discovers wildlife in extreme environments. Steve continues his search for wild tigers in Bhuta by kayak, navigating the Drangme Chu river. Show more

Steve travels to Japan to prove that it's possible to find extraordinary animals and adventure in one of the busiest countries on the planet. Show more

Steve Backshall discovers wildlife in extreme environments. In this special episode, Steve counts down through his top five adventures of the series. Show more

Steve Backshall discovers wildlife in extreme environments. Steve heads to the jungles of Borneo to track down the wildlife hidden beneath the canopy. Show more