A dive beneath the waves in search of the mysterious creatures of New Zealand's oceans, from the southern fjords to the Kaikoura coast and the Milford Sound.

Many of New Zealand's native animals share an unusual trait - they're living giants. From the slopes of an extinct volcano to glacial lakes, researchers find out why.

Wildlife must adapt or die in New Zealand's dramatic landscape. How have its animals adjusted to one of the most geologically unsuitable places on Earth?

A look at the surprising clues that help to explain the kiwi's history and why it evolved into such an odd bird. Plus, we find out how the secret to the kiwi's success became its gravest threat.

A look at one of the weirdest reptiles on Earth - New Zealand's tuatara. How did it survive when most dinosaurs were driven to extinction?

New Zealand'd rare kakapo has been called the world's strangest parrot, but why? One of its last refuges may hold the clues and researchers race to save them.