NatGeoWild HD

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It's all hands on deck as Dr Oakley castrates a once-wild stallion. But will the newly gelded horse succeed in getting three mares pregnant.

With scientists still needing samples from a second massive tarpon, Cyril and his team head deeper into the Nicaraguan jungle than they've ever been before. 7+.

A look at the mindblowing methods employed by clever critters in order to stay one step ahead of their predators and prey.

Head inside one of the country's newest national parks. It boasts more species than any other desert in North America, as well as incredible floral blooms.

Dr Erin removes mysterious mammary lumps from a hunting dog while Dr Ben repairs a calf's hernia. They also decide to adopt a Border Collie named Hank.

Uncover the beauty of the Santorini skyline, Corfu's Venetian fortress and a summer festival with a fiery twist on the island of Spetses. (2 of.

A beach in Costa Rica challenges what we think we know about big cats. Americas largest cat, the jaguar, is hunting an unusual prey: sea turtles. 7+.

A look at the most surprising animal friendships, including a parrot that's palled up with a pooch and a husky that has raised a kitten. (S5, ep 2) 7+.

The zoo goes wild for three cute cheetah cubs. But it's not all good news. Staff fight to save Arctic fox Anana, and monkey Finnick needs emergency care.

Customs uncover $135,000 worth of cocaine stashed in a passenger's shirts. Things go very wrong when staff test out a spare parking space for a $330million plane. (S2, ep 8). All Ages.

Canadian vet Michelle Oakley risks life and limb to give a cheetah and a bear a check-up. Later, she also tends to some baby meerkats. (S1, ep 5) 7+.

A penguin that's had a year's worth of bad hair days gets a much-needed new look. The team calls in a human heart expert in the hope of saving chimp Lady.

Documentary exploring the nooks and crannies of the world's third largest island. Dominated by Mount Kinabalu and home to an array of exotic animals, Borneo is packed with surprises.

The Great Smoky Mountain National Park staff work to protect and prepare black bears and other animals as a harsh winter approaches.

On the brink of winter, Alaska Natives pursue moose, fish and warmth. 7+.

Bjørn responds to a terrible tragedy on the road. Ove and his crew race against the clock to get a fish truck back on its way before its load spoils. 7+.