NatGeoWild HD

The animals and humans that adopt other species and raise them as their own, like the nursery dog who raises everything from baby foxes to warthogs.

Impossible: A chicken lays an egg while under anaesthesia and Dr Ben fixes a prolapsed cow and a puppy with an upset stomach. (S4, ep 3) 7+.

The keepers need to catcha a Muntjac deer to discover why he's suffering from mysterious seizures. Meanwhile, a skunk sees a heart specialist. 7+.

Dr Pol works to save an unborn calf after its mum ate a life-threatening snack. He also helps barking piggy bank Ellie May, a dog that's greedy for money.

Dr Oakley comes to the aid of a donkey in need of an attitude adjustment, and a male caribou with a life-threatening leg infection.

Dr Oakley takes a young bald eagle injured in a fire under her wing, before being given a run for her money by a lame caribou.

Called the Queen of Ranthambore, fearless Machli is one of the wild's longest surviving tigers. But as her offspring challenge her for her territory, her lengthy reign could be at its end.

Ole struggles to rescue a 22-tonne truck that's stuck in the snow. Meanwhile, new roads mean new problems for boss Thord after he expands his territory. (S3, ep 2).

Ole and Roger mount a major rescue when a mail delivery truck plunges into a ditch. Meanwhile, recent changes mean big challenges for Thord. (S3, ep 3) 7+.

It's Simon and Siouxsie to the rescue when a black mamba slithers into a TV, a spitting cobra chases a nun and a baby python gets trapped in the air con.

Simon and Siouxsie chase mambas across the city. Simon is forced to call in the fire brigade when he's faced with one of his most dangerous captures ever.

May the Horse Be With You: A tiny Silky Terrier is brought to the clinic with three babies stuck inside and a very pregnant cow is down and can't get up. (S4, ep 1) 7+.

The monumental birth of four endangered Red Wolf pups marks a historic moment for the zoo, but then an injury puts one of the pups' lives in jeopardy. (S3, ep 10) 7+.

The Florida team fight to keep their most critical injured and orphaned manatees alive, as a growing Siamang declares her independence. (S3, ep 11) 7+.

A filmmaker explores the Nicobar Islands in the Indian Ocean, the last remaining windows into the primeval past of tropical islands. 7+.

Simon and Siouxsie head to a village where a super-sized serpent is killing livestock. But a snake isn't all that's waiting for them when they arrive. (S2, ep 4) 7+.