TV Guide for Now Saturday 11 in Nat Geographic Wild

Thord and Bjoern open a new garage. Bjoern heads out to rescue a truck, but the driver has Bjoern losing his temper, and almost his finger! (S6, ep 4) 7+.

Simon and Sioux scale new heights - James Bond style - to help Mbali rescue a black mamba, after flooding left hundreds of snakes homeless. (S9, ep 1) 7+.

A massive black mamba holds an apartment block hostage, Sioux uncovers another one at a wedding venue and Mbali has a close brush with death. (S9, ep 2) 7+.

The docs tackle high-stakes challenges, while lighter visits include a puppy's first exam, a constipated tortoise and a bearded dragon gender reveal party! (S5, 4/12) 7+.

Cobra: Step into the slippery world of the cobra. It's a realm filled with cannibalistic kings, bird-hunting desert dynasties and semi-aquatic toad hunters. (S1, ep 1) 7+.

Viper: Vipers rule deserts, besiege homesteads and haunt the forest floor. Meet a snake family as diverse as the challenges they face.

A few species managed to thrive in isolation on the Galapagos Islands. As a result, the islands are a true evolutionary playground. 7+.

Fearless husband and wife team Simon and Nadine face the largest black mamba they've ever seen. They are also invited to witness the birth of 15 baby snakes. (S1, ep 3) 7+.

Truck: As brutal weather hits the remote Alaskan community, Sam searches for materials to build a stove. Curly gives Amanda a gruelling lesson in dropping trees. (S1, ep 6) 7+.

The group's resident inventor Sam attempts to build a wind turbine out of junk and scrap metal. Hans makes a discovery that threatens the town's water supply. (S1, ep 7) 7+.

From wasps that use helpless caterpillars to guard their young to birds that vomit when they sense a threat, discover some of nature's strangest behaviour. (4 of 4) 7+.

A look at some of the most stomach-churning eating habits in the animal kingdom. From strange snacks to a pelican caught swallowing a pigeon whole.