Survival Anglia Ltd

Lake Tanganyika is an 'Ocean' in Africa. Millions of years ago it was colonized by a little fish called 'Cichlid'. Otters, crocodiles, cobras and cormorants all hunt the fish in clear water. How the Cichlid survived and evolved is an incredible story for, millions of years later, there are over 200 new species - all found only in Lake Tanganyika. Incredibly, they have evolved to look like coral reef fish. There are cichlid equivalents of tuna, snapper, gobies and goatfish. They have evolved bizarre methods of breeding with mouth-incubation, lekking and, unique amongst fish, there is even a cuckoo. Despite all their specialization over millions of years, if an opportunity presents itself, the little fish can behave like their unspecialized ancestor. In the climax of the film, they bang together to feast on a hatch of sardine fry. This is the story of how one little fish has conquered a lake.

In Africa there is a fable that explains the creation of the tides. When a hyaena challenged a mudskipper to a drinking contest to decide who should own the shore, the god Mungu tilted the earth so the sea flowed inland, and neither could win.

Nakuru National Park in Kenya is rather like a reform centre for wayward youth. Take Scarface: as a young lioness with a reputation for killing sheep and cattle, she was due to be shot. Instead, she was chosen to establish a new pride in Nakuru. Wildlife film-maker Barbara Tyack chronicles the life of this special lion family with a weakness for climbing trees. Fabulous camerawork captures great chase sequences, some gory ones, and the odd romance

Whether on land, in fresh water, or in the sea, tortoises, terrapins, and turtles have an advantage. Nature has blessed them with a protective shell that locks out interference and danger.