Natural World

For two years Simon King takes on the role of mother to two cheetah cubs, Toki and Sambu, orphaned when their mother was killed by a lion.

The Norfolk Broads is one of the last fragments of a vast swamp where ancient Britons hunted wildfowl and fished for perch and giant pike. Over the centuries most of the marsh and its wildlife were destroyed. The swamp is now recovering, and spectacular birds like avocets, marsh harriers, and cranes are back. Can the Broads be restored or will they be destroyed by rising sea levels?

No description available.

A stunningly photographed portrait of the wildlife and landscape of the Mississippi River seen through the eyes of 'River Rat' Kenny Salwey, a legendary hunter, trapper and author who lives off the land and shares his watery haunts with beavers, snapping turtles, sturgeons, pelicans and eagles.

Profile of the hammerhead shark, which has until now been shrouded in mystery as no-one could understand why its head is such a strange shape, or how it might help the creature's survival. Marine biologists in Hawaii explain how the fish utilises the unusual shape to give it a unique, deadly weapon in the oceans. Narrated by Ian Holm

An ancient oak wood in the heart of England is as full of beauty and drama as anywhere on Earth. Philippa Forrester spends a year witnessing its secret life - the sparrow-hawk terrorising blue tits, fox cubs learning to stalk rabbits and a buzzard looking for love.