NatGeoWild HD

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From the highest mountains to the most extreme depths of the ocean, witness the vicious and nail-biting battles that begin when creatures turn on their own kind. (S2, ep 4) 7+.

Dr Vernard Hodges and Dr Terrence Ferguson continue tackling complex rural Georgia cases with their signature humour and care. (S5, ep 3) 7+.

The entire zoo is on baby watch as Phoebe the elephant goes into labour. Meanwhile, a dentist makes a house call to perform a root canal on a polar bear. 7+.

Dr Pol is called in to assess 2 runaway bulls. Across town, Dr Emily responds to a complicated emergency calving that is life-threatening for mother & calf. (S5, ep 4) 7+.

Dr Michelle Oakley risks everything to save a brown bear from drowning, then has to run to save her own life.

Problems arise as Dr Michelle Oakley arranges for two wild horses to be airlifted to a new home.

Join an Australian mob of eastern grey kangaroos looking for a better life. From causing trouble on a golf course to car dodging, it's a hard life of 'kaos' for these kangaroos.

When a stuck truck blocks a main road, Thord has to rescue it - but the driver doesn't want to pay, so Thord threatens him with house arrest. (S5, ep 5) 7+.

Thord struggles to rescue a truck blocking a mountain pass while impatient drivers put his life in danger. (S5, ep 6) 7+.

When a mechanic spots an enormous black mamba disappear into a scrap heap, Simon and Sioux put their new apprentice to the test. 7+.

Simon takes on a big green mamba, Sioux meets an angry monitor lizard and their apprentice gets a fright when a black mamba turns on her. 7+.

The doctors at Critter Fixer operate on an Eel and perform a snake c-section. (S5, ep 11) 7+.

Later, Gator! There's danger when an alligator snaps out of its restraints during a check-up. Staff uncover something serious when they treat a sloth with a limp. (S2, ep 5) 7+.

Staff throw a leaving party for polar bears Neva and Amelia Gray. Kangaroo Brie hops to the dentist and an unlikely bond grows between a takin and a camel. 7+.

A thrilling dive into the shark-infested waters surrounding Alcatraz, San Francisco's notorious prison island that housed the likes of Al Capone and Alvin Karpis. 12+.

Simon and Siouxsie throw their lives on the line to get a deadly snake out of a sofa. They also help a man who didn't know he was room sharing with a mamba. (S5, ep 3) 7+.