BBC Earth

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Steve experiences killer cold and discovers how animals in the frozen corners of our planet survive sub-zero temperatures. Heading to an extreme environments aboratory, Steve is stripped to his underwear in a huge freezer and plunged into a swimming pool of chilled water to see what happens to his body in these extreme conditions. How will Steve match up to the cold specialists in the natural world?

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Series 1, Episode 1

BBC Earth

Steve Backshall boards an ice-breaker and hunts for the Arctic's top predator - the cuddly-looking Polar Bear. 1/31

Series 1, Episode 1

BBC Earth

Steve Backshall boards an ice-breaker and hunts for the Arctic's top predator - the cuddly-looking Polar Bear. 1/31

Series 1, Episode 2

BBC Earth

Steve heads to Somerset Island in the Canadian Arctic to search for the musk ox and an Arctic fox. 2/31

Series 1, Episode 2

BBC Earth

Steve heads to Somerset Island in the Canadian Arctic to search for the musk ox and an Arctic fox. 2/31

Series 1, Episode 3

BBC Earth

Steve is pushed to the limit when he abseils into the heart of a glacier in Alaska. 3/31

Series 1, Episode 3

BBC Earth

Steve is pushed to the limit when he abseils into the heart of a glacier in Alaska. 3/31

Series 1, Episode 4

BBC Earth

Steve tries to find an elusive sixgill shark and a toothy wolf eel in Canada. 4/31

Series 1, Episode 4

BBC Earth

Steve tries to find an elusive sixgill shark and a toothy wolf eel in Canada. 4/31

Series 1, Episode 4

BBC Earth

Steve tries to find an elusive sixgill shark and a toothy wolf eel in Canada. 4/31

Series 1, Episode 5

BBC Earth

Steve visits the Yellowstone national park, where he tracks grey wolves and bison. 5/31

Series 1, Episode 5

BBC Earth

Steve visits the Yellowstone national park, where he tracks grey wolves and bison. 5/31

Series 1, Episode 5

BBC Earth

Steve visits the Yellowstone national park, where he tracks grey wolves and bison. 5/31

Series 1, Episode 5

BBC Earth

Steve visits the Yellowstone national park, where he tracks grey wolves and bison. 5/31

Series 1, Episode 6

BBC Earth

Steve and his intrepid crew travel to the backwoods of North Carolina, USA, in search of the infamous timber rattlesnake. 6/31

Series 1, Episode 6

BBC Earth

Steve and his intrepid crew travel to the backwoods of North Carolina, USA, in search of the infamous timber rattlesnake. 6/31

Series 1, Episode 6

BBC Earth

Steve and his intrepid crew travel to the backwoods of North Carolina, USA, in search of the infamous timber rattlesnake. 6/31

Series 1, Episode 6

BBC Earth

Steve and his intrepid crew travel to the backwoods of North Carolina, USA, in search of the infamous timber rattlesnake. 6/31

Series 1, Episode 7

BBC Earth

Steve's epic adventure has reached Cuba, a colourful Caribbean island with a secret deadly side. Whilst there, he visits a cockroach-infested cave to find a bat-eating snake. 7/31

Series 1, Episode 7

BBC Earth

Steve's epic adventure has reached Cuba, a colourful Caribbean island with a secret deadly side. Whilst there, he visits a cockroach-infested cave to find a bat-eating snake. 7/31

Series 1, Episode 7

BBC Earth

Steve's epic adventure has reached Cuba, a colourful Caribbean island with a secret deadly side. Whilst there, he visits a cockroach-infested cave to find a bat-eating snake. 7/31

Series 1, Episode 7

BBC Earth

Steve's epic adventure has reached Cuba, a colourful Caribbean island with a secret deadly side. Whilst there, he visits a cockroach-infested cave to find a bat-eating snake. 7/31

Series 1, Episode 7

BBC Earth

Steve's epic adventure has reached Cuba, a colourful Caribbean island with a secret deadly side. Whilst there, he visits a cockroach-infested cave to find a bat-eating snake. 7/31

Series 1, Episode 5

BBC Earth

Steve visits the Yellowstone national park, where he tracks grey wolves and bison. 5/31

Series 1, Episode 7

BBC Earth

Steve's epic adventure has reached Cuba, a colourful Caribbean island with a secret deadly side. Whilst there, he visits a cockroach-infested cave to find a bat-eating snake. 7/31

Series 1, Episode 7

BBC Earth

Steve's epic adventure has reached Cuba, a colourful Caribbean island with a secret deadly side. Whilst there, he visits a cockroach-infested cave to find a bat-eating snake. 7/31

Series 1, Episode 8

BBC Earth

Steve dives with a mako, the fastest shark in the seas, on California's Pacific coast in a fun-filled, adrenaline-fuelled ocean adventure. 8/31

Series 1, Episode 8

BBC Earth

Steve dives with a mako, the fastest shark in the seas, on California's Pacific coast in a fun-filled, adrenaline-fuelled ocean adventure. 8/31

Series 1, Episode 8

BBC Earth

Steve dives with a mako, the fastest shark in the seas, on California's Pacific coast in a fun-filled, adrenaline-fuelled ocean adventure. 8/31

Series 1, Episode 8

BBC Earth

Steve dives with a mako, the fastest shark in the seas, on California's Pacific coast in a fun-filled, adrenaline-fuelled ocean adventure. 8/31

Series 1, Episode 9

BBC Earth

Steve joins forces with Texan fisherman Bubba as he hunts for a river monster than can grow up to 10 feet long. 9/31