A whale wearing a harness triggers speculation of Russian spying activity.

New worlds and animal behaviours are uncovered on a journey from the equator to the poles.

Antarctica - a land of survivors enduring the most hostile conditions on earth.

Sir David Attenborough investigates a unique discovery: the skull of a giant sea monster.

Simon visits South Africa, Mozambique and Zanzibar, swimming with sharks on the way.

David Attenborough attempts to animate the life of a 200-million-year-old ichthyosaur.

The animals and people of the Gulf Stream, a current that crosses the North Atlantic.

New spy creatures reveal an ocean full of intelligence with startling ways of thinking.

Exploring Hawaii, a tropical sanctuary for any wildlife that can reach its remote shores.

Monty Halls examines the complex structure of the Australian coral reef and its wildlife.

This travels to the very depths of the seas, to reveal a spectacular variety of life.

Recently uncovered Soviet whaling reports reveal a startling truth about whale numbers.

The story of the people and wildlife of the Zambezi, Africa鈥檚 wildest river.

Film that shows how ocean waves are not only beautiful but also profoundly important.

An in-depth look at scientists鈥� ground-breaking efforts to save coral reefs.

David Attenborough reveals our wildlife, from killer whales to cheeky puffins.

Steve Backshall meets a superspeedy shark. The mako shark can reach speeds of 50kph.

Documentary that reveals the strange forms of life that thrive in the Southern Ocean.

A look at marine invertebrates, including Humboldt squid, starfish and giant octopuses.

Looks at how the abundant wildlife survives some of the hardest conditions on the planet.

A look at the riot of life and colour where two ocean currents sweep around the Cape.

In the huge expanse of the oceans, ingenuity is the key to success in the mating game.

How Earth's five oceans connect to form the largest ecosystem on the planet.

Exploring tropical paradises and storm-ravaged icy polar seas.