Scientists dive deep on the mysterious and unusual predatory behavior of orcas attacking great white sharks, and the disappearance of the other sharks after these attacks.
Animals shock us with the most bizarre appearances - some even look like they've been dressing up. But the weird and wonderful shapes and colours of nature are vital to the animals' lives.
This landmark series explores a vast ocean that stretches nearly 10,000 miles, from Arctic to Antarctic and from sun-drenched tropical reefs to crushing abyssal depths.
Flight is the ultimate superpower, an extraordinary ability that humans can only dream of. Yet an astonishing number of animals have mastered the skies.
Set in the wilderness of the Kamchatka Peninsula, the land of legends and the kingdom of wild brown bears, we follow the daily adventures of five wild brown bears.
Popular movie trailers from 1966
These some of the most viewed trailers for movies released in 1966:
An airplane crashes in Spain. The Russian as well as the Chinese government take care of the events because on board there was a "black box" containing precious and dangerous devices for the whole world.
A film record of M.E.T.E.I. (Medical Expedition to Easter Island), one of the most unusual scientific enquiries ever launched, headed by a McGill University research team.