A band of rockhopper penguins come together to chase off a group of vultures threatening their chicks.

The Penguin Cams used to film Penguins: Waddle All the Way took a serious beating, from being knocked off rocky ledges to being attacked by the penguins themselves.

A male penguin flirts with a lifelike Penguin Cam while his mate is at sea. When she returns, the feisty female takes on the animatronic home wrecker.

A jealous female penguin has here eye on a handsome male, so she steps in and starts a flipper fight with his new mate.

Penguins are tough birds, and to prove it, Discovery and BBC are spying on them! Ultra-realistic Penguin Spy Cams offer an unprecedented look at penguins.

A band of rockhopper penguins come together to chase off a group of vultures threatening their chicks.

The Penguin Cams used to film Penguins: Waddle All the Way took a serious beating, from being knocked off rocky ledges to being attacked by the penguins themselves.

A male penguin flirts with a lifelike Penguin Cam while his mate is at sea. When she returns, the feisty female takes on the animatronic home wrecker.

A jealous female penguin has here eye on a handsome male, so she steps in and starts a flipper fight with his new mate.

For every incredible moment of footage in the Africa series, there are countless stories of filmmaking hardship. See what it was really like to make Africa.

In this behind-the-scenes web exclusive, Africa producer Hugh Pearson reveals how one of the most violent giraffe fights ever seen was filmed.

Go behind the scenes of AFRICA with wildlife cameraman Charlie Hamilton James, who explains how he filmed the lizards and lions sequence.

In Man, Cheetah, Wild, Kim Wolhuter gets closer than you've ever seen to wild cheetahs.

Meet some of the world's rarest amphibians, housed inside the frogPOD. Did you know that up to half of all frog species could be gone in the next 20 years?

Follow the Racing Extinction team as they test a new camera that records carbon dioxide emissions in infrared.

Scientists and experts explain the effect that skyrocketing carbon dioxide levels are having on our oceans and coral reefs - and why it matters.

The Cornell Wild Acoustical Laboratory has been collecting animal sounds since the 1930s. Among their collections are animals that have gone extinct.

Humans are rapidly driving many species to extinction. Hear the song of the last Kauai O’o bird and learn more about what is causing these mass extinctions.

The biggest factor in mass extinction is converting natural animal habitat to land used for food production. See how our way of producing food is contributing to a major pollution problem.

Shawn Heinrichs recalls how he rescued a manta ray that was caught in a fishing line.

A team of artists and activists expose the hidden world of extinction with never-before-seen images that will change the way we see the world. Watch Racing Extinction with the world Wed Dec 2 9/8c.