National Geographic WILD HD Friday

Teleshopping.

Teleshopping.

Teleshopping.

Vet Dr Michelle Oakley visits a caribou with a nasty leg injury, before having to put down one of the Yukon's smaller animals. Later, a donkey starts to wake up during surgery

Battles to the death between wild animals including cheetahs, lions and hyenas, using footage shot by wildlife film-makers and members of the public

The wildlife of the Pacific volcanic islands, including the world's largest tortoises, flightless birds, lizards that dive into the sea, sea lions, penguins and hammerhead sharks

The wildlife of Africa's vast grasslands, which must remain constantly on the move to cope with the challenges posed by the changing seasons

One of the specialists is forced to swim with sharks and stingrays as the team tries to build a tank that mirrors a turtle's habitat

Michelle Oakley examines worrying growths on a young caribou at the Yukon Wildlife Preserve, but things take a turn for the worse when the drugged deer challenges an older animal

Footage of the large reptiles, examining their mating rituals, their struggle to find food and water during Indonesia's dry season, and the animals that they prey on

Animals that swallow their prey whole or use massive jaws to fight territorial rivals, including orange-throated pikeblennys, Humpback whales and Nile crocodiles

Penguin mates prepare to become surrogate parents, a treasured white rhino trains for her next adventure, and a moray eel visits the vet

A trip through the forests, meadows and misty haze of the Great Smoky Mountains, one of the most visited national parks in the US

Simon and Siouxsie find their lives on the line when they get called out to catch a black mamba on a particularly hot day, when the weather makes snakes more aggressive

Canadian vet Dr Michelle Oakley shows her daughter, Sierra, the ropes of animal care. Among other tasks, the pair perform a check-up on an eight-month-old puppy

Comedian Keegan-Michael Key joins Bear in the Icelandic Lava Fields, braving a perilous rappel off a sheer 200-foot cliff and an endurance-testing jumar climb

National Geographic explorer Albert Lin reveals the secrets behind the Knights Templar, Stonehenge, and a mysterious stone city in the Pacific Ocean

With nearly every boat still in contention on the season's last day, the fleet races against the clock to land one final bluefin

Catching a black mamba at midnight is only part of Simon and Siouxsie's latest challenge; they also bring 25 baby rock pythons into the world

As the residents spend time and energy to get results before winter, Matt and Carl get ready for an epic journey and Oliver chases after deer

Documentary investigating how animals use speed to kill their prey, including the cheetah, the stargazer fish and the black mamba

Dr Oakley has to neuter a coyote, a harbour seal pup has emergency surgery to allow it to return to the ocean, and a reindeer needs its antlers trimming

The ZooTampa Team has their hands full with critical manatees, a young Nyala undergoes a messy procedure, and a nervous cockatoo needs a beak trim

Deep in the Costa Rican rainforest, Dr Oakley and the team track a tapir, help a pregnant sloth, release animals back into the wild and treat a Caracara

Teleshopping.

Teleshopping.

Teleshopping.

Teleshopping.