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Mountains: Bear Grylls narrates a spectacular look at life for creatures in some of the most brutal environments on Earth. From Oscar-winning cinematographer Guillermo Navarro. (S1, ep 1)

Into The Snake Pit: The slightest mistake could prove fatal when Simon and Siouxsie encounter one of earth's most venomous snakes in a garage. (S2, ep 1) 7+

The Beaver Trap: Sam ascends to a rotten boat roof when he and Squibb attempt to salvage an unwieldy and heavy mast. (S7, ep 6)

Any Blood Will Do: Oliver, Carl and Matt fish with slinky pots for the first time and catch more than they bargained for. (S7, ep 7)

The Amazing Aqua-Van: The Living Colour team return to build more incredible aquariums. They begin by transforming a Volkswagen van into a giant novelty fish tank. (S2, ep 1) 7+

Desperate Housetanks: Ben is tasked to install two over-sized tanks in an Orlando mansion. Plus, the survival of a rare frog hangs on Mat building it the perfect terrarium. (S2, ep 2) 7+

Warts and All: At The Yukon Wildlife Preserve, Dr Oakley treats a young caribou that could go blind, as well as a mountain goat with a life-threatening injury. 7+ (S3, ep 7)

Teleshopping.

Teleshopping.

Teleshopping.

Teleshopping.

Teleshopping.

Bad News Bear: Dr Michelle Oakley risks everything to save a brown bear from drowning, then has to run to save her own life. (S4, ep 6)

When Grizzlies Attack: Casey travels to Yellowstone National Park where he observes the survival techniques used by the resident grizzlies, from hibernation to preying on elk calves.

The Lost Prince: Young hyena Mizumu musters all his strength, intelligence and cunning for the biggest challenge of his life - finding a new clan. (S2, ep 4) 7+

Deadly Under Dogs: Check out some of the most brutal and surprising battles in nature - ones where size doesn't matter, and no victory is guaranteed. (S6, ep 7)

Trouble with Tater: Beloved clinic house cat Tater falls ill and the team bands together to save him. Charles debuts a new look and Dr Pol treats wood-chewing steer. U. (S12, ep 10)

Like Herding Cats: The team travels to a remote Alaskan island where they're shocked to find that the feral cat population has exploded. (S11, ep 12)

The Plot Chickens: Dr Ben provides relief for a flock of featherless chickens and a bull with a bum hoof. Meanwhile, the docs motivate each other to shed a few unwanted pounds. (S4, ep 10)

Beach Patrol: A team of experts risk life and limb to learn more about Earth's most-feared predator. Snapping back into action in Malibu, they begin by hunting young sharks. (S2, ep 1) 7+

The Dark Night: Simon has a close call with a black mamba in the middle of the night. He also finds his first-ever snouted cobra, that's managed to hitch-hike to Durban. (S6, ep 2)

Follow the daily drama at Dubai International as its 60,000-strong workforce intercepts smugglers, makes emergency aircraft repairs and builds a huge new concourse. (1 of 10)

Grandma Knows Best: Dr Oakley treats a limping bison and a litter of puppies struggling to survive. (S11, ep 4)

Swallowed Alive: Gaze into the realm of gulpers: animals who waste no time eating their prey, often swallowing it whole. (S1, ep 1)

Monsters Beneath: Examine the weirdest animals that hide deep beneath the soil's surface. From a worm exploding from the seabed to a miniature digger excavating miles of tunnel. (S1, ep 2)

Rumble in the Jungle: Just in land, the lush landscape conceals deadly predators: all eagerly searching for their next meal. (3 of 3)

Against the Wind: The Indigenous Peoples of Alaska rebuild their communities after Typhoon Merbok. U. (S2. ep 12)

Convoy Carnage: As wild weather and traffic convoys cause havoc, Thord races to rescue stranded drivers. Plus, Ole Henrik takes the company's new truck on its first mission. (S9, ep 4) 7+