S1.E6 ∙ The Great Survivors

TV documentary series about the toque macaque monkeys of Sri Lanka

Spanning over two thirds of our planet, the world's oceans are home to creatures that can be traced back to Earth's humble beginnings. A world where life blossoms...And danger lurks. These are the world's Ultimate Oceans. Across the three breathtaking episodes, this extraordinary series will enter the world below the waves and uncover an enchanted place filled with infinite secrets, mysteries and hidden wonders. Our oceans are a place where life hangs in the balance, and each creature must play its part in a never-ending cycle. Ruled by the tides, guided by instinct, all who live here - from the small to the huge - have their place in a delicate, perfectly balanced system - Against all odds, every day is a race to be the fastest, biggest, smartest or most powerful. To survive, they must navigate their LIFE IN THE DEEP.

Renowned wildlife filmmaker Gordon Buchanan gets close to wild cheetah in the stunning Kalahari, experiencing first hand the very real dangers these beautiful big cats face.

Big cat expert Giles Clark accepts Maya, a vulnerable jaguar cub, into his home and family in this three-part documentary following his work at the Big Cat Sanctuary in Kent, UK as he fundraises to protect endangered cats across the globe.

The Volga is a myth, a unique river of superlatives and the natural lifeline of Russia. With a length of more than 3,500 kilometers, it is the most powerful and water-rich river in Europe. Their catchment area is larger than France, Spain and Portugal combined. While all the other great rivers on earth flow into an ocean, the Volga fills its own sea, the largest inland lake on earth, the Caspian Sea. On the way there it flows through rustic forest areas, through wide steppes and dry semi-deserts, each of which is home to a unique wildlife. In three years of filming and on countless expeditions, the Altayfilm team and their Russian colleagues managed to capture the fascinating stream in grandiose pictures and to fully portray it for the first time. Opulent pictures and breathtaking aerial photographs alternate with animal behavior that has rarely been documented before, told with fine humor and a special lightness.

This series was filmed over a year, it captures Wales' varied wildlife and stunning landscapes, from the north where there are rugged mountains to the west coast seabirds.