A professor develops an extraordinary relationship with an octopus when he invites it to live in his home. The octopus, called Heidi, unravels puzzles, recognises individual humans and even watches TV with the family. The episode also shows remarkable behaviour from around the world - from the day octopus, which can change colour and texture in a split second, to the coconut octopus, which carries around its own coconut shell to hide in. But most fascinating of all is seeing how Professor David Scheel and his daughter Laurel bond with an animal that has nine brains, three hearts and blue blood running through its veins.

Fish make wonderful pets. With the right care, they have been known to live for 20 to 30 years! But ...

Every year, thousands of Antarctica's emperor penguins make an astonishing journey to breed their yo...

This documentary records the journey undertaken by Jacques Cousteau, his 24-member team, and an NFB ...

A clash of true oceanic titans sees fights in the remote battlefields of Ascension Island. Tuna are ...

High up on the Tibetan plateau. Amongst unexplored and inaccessible valleys lies one of the last san...

Director Dominique Leclerc spent years depending on medical devices for her survival. Then, looking ...

An epic story of adventure, starring some of the most magnificent and courageous creatures alive, aw...

Whether it's the biggest great white, the most photographed tiger shark, or the shark known for jump...

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

A man forms an unlikely friendship with a wild otter while living in the remote Shetland Islands.

Jane Goodall-Reasons For hope is an uplifting journey with stories to inspire people to make a diffe...

The sun is the miracle that makes everything possible - but also the greatest danger. For the first ...

Showcased in beautiful IMAX format, this documentary takes viewers into the hearts, minds and world ...

The city of Rostock is planning to expand the harbour by 660 hectares in the coming years. While mea...