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On a unique underwater voyage spanning millions of years in prehistory, our dauntless presenter explores seven different seas, encountering an extraordinary variety of underwater life from seven different eras. His journey culminates in the late Cretaceous period - the most dangerous period ever in the ocean; the time of the awesome mosasaurs, a 20-metre-long monster with a mouth that could bite a tree in half. Before this period there are many other challenges the explorer must tackle first. In the Triassic period 230 million years ago, he meets and attempts to feed a six-metre nothosaur and the serpent-necked tanystropheus. Further back 400 million years ago and the plants have yet to evolve. The seas are terrorised by giant sea scorpions and even more monstrous, the 12-metre long tentacled orthocones. How does our expert plan to approach these terrible creatures?

A 90-minute documentary about life before the dinosaurs. Starting from the Cambrian Period (530 MYA) and ending at the Early Triassic Period (248 MYA), Walking With Monsters shows the life and death struggles prehistoric creatures before the dinosaurs went through. It also portrays an accurate picture of our first ancestors.

A documentary series on life in and adapted to the conditions of the Southern part of the Pacific Ocean, a vast aquatic region with an unequaled number of islands. Both wildlife and human cultures developed in a unique variety, largely determined by such natural conditions as huge distances, sea depths, currents and winds.

Where _Walking With Dinosaurs (1999) (TV)_ took us through the Triassic, Jurassic and Cretaceous Eras, Walking With Prehistoric Beasts examines the various Cenozoic eras, when mammals began to dominate after the massive late Cretaceous extinction that killed 65% of life on Earth, including the dinosaurs.

Louis Theroux documents some of the US's most bizarre happenings, events and rituals, by getting involved himself.

David Attenborough's comprehensive study of fossils, which give many clues to how life existed on pre-historic Earth.

This is a series about the tiny animals of the forest and jungles. Seen from their perspective, we experience a life where almost everything is a giant.

David Attenborough's comprehensive study of how a remarkable group of animals evolved - a group that includes ourselves.

Brian travels the globe to discuss these topics with examples from our planet and others in the universe.

This two-part series, a sequel to Walking with Dinosaurs featured Nigel and his "team of fellow explorers" encountering prehistoric life over a large range of time, and seeing creatures not featured in the original series.

Numbers are the rulers of the universe. What if there is a code for life's perfection? A code making the world we see, the "what we are" and the "everything else in the universe"?

A four-episode animated series charting the adventures of four dinosaurs - each on a different continent in the prehistoric world: a lone female Velociraptor in Asia; a young male Daspletosaurus in North America; a South American female Saltasaur; and a young adult Pyroraptor in Europe. Narrated by Christian Slater and hosted by paleontologist Scott Sampson.

Hosts Kate Humble and Dr. Hellen Czerski follow Earth's one-year journey around the sun and the extreme effects it can have on our planet's weather.

The story of human evolution is told through the stories of representative members of the various species leading up to modern homo sapiens. It is ongoing climate changes that force human ancestors to develop, one by one, the unique characteristics of the modern humans. Though earlier species were superbly successful in their environments they were unsustainable when the environment changes.

Nigel Marven travels back in time to rescue exotic creatures on the brink of extinction. CGI is used to create animals no longer seen on earth, from woolly mammoths, and T Rex, to dinosaur-eating crocodiles.

Wide ranging BBC arts programme.