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 1966, Heinz Sielmann sets off on his longest expedition. He spent 19 months traveling through the...

The summits and sheer mountain ridges of Austria’s "Little Siberia" funnel the freezing air from sno...

Refuge(e) traces the incredible journey of two refugees, Alpha and Zeferino. Each fled violent threa...

Wildlife cameraman Gordon Buchanan travels to the frozen north, deep inside the Arctic Circle, to me...

Drawing from never-before-seen footage that has been tucked away in the National Geographic archives...

Dark fears over the North Pole. Long sheltered from large-scale industrial exploitation, the Arctic ...

the film „mandà in lunga“ follows a journey from Val Poschiavo, a valley in the Italian-speaking par...

The River Danube is home to a fish that grows larger than the Great White Shark. Although it leads a...

A documentary of insect life in meadows and ponds, using incredible close-ups, slow motion, and time...

Described as being a film about determination, danger and the ocean’s greatest depths, James Cameron...

In the depths of the Colombian jungle, the skeleton of an immense abandoned cement bridge is tucked ...

With more than 300 days a year, the sun dominates this country so much that it’s even shining from t...

Every year, on the steppes of the Serengeti, the most spectacular migration of animals on our planet...

Journey to a secret valley in Australia, where a nervous baby kangaroo named Mala faces hungry dingo...

This documentary follows the harsh and competitive life of Addo, a male lion born into a successful ...

Investigation into a global ecological disaster that could endanger the entire human race. Today, a ...

In a pathetic attempt to host his own children’s nature show, a failing filmmaker travels 3,000 mile...

In this retrospective tribute, acclaimed filmmaker Jean Walkinshaw hails the 100th anniversary of Mo...

Roam the Wild West frontier land of the Rio Grande’s Big Bend alongside its iconic animals, includin...

Scientists dive deep on the mysterious and unusual predatory behavior of orcas attacking great white...