Fortey travels to the rainforests of Madagascar - an ancient island that has spawned some of the most extraordinary groups of plants and animals anywhere in the world. From beautiful Indri lemurs, toxic frogs, and the cat-like giant mongoose called the fossa, to evolutionary oddities like the giraffe-necked weevil and the otherworldly aye-aye, he uncovers the secrets of the evolutionary niche - examining how, given millions of years, animals and plants can adapt to fill almost any opportunity they find.
The Mackenzie Delta is an Arctic network of channels and islands at the mouth of Canada's largest river. It's home to the ancient Inuit, as well as a variety of highly specialized wildlife, including the sonorous sandhill and majestic peregrine falcon. Follow them as they contend with a rapidly changing climate.
Natural World visits the Arizona desert, where a new honey ant queen wages an intense battle for survival as she attempts to build and defend her empire. Eliminating rivals with ruthless efficiency, sacrificing thousands in her quest for domination, murder, cannibalism, genocide - she will do anything to keep her crown. Empire of the Ants is the epic story of one honey ant queen's dramatic rise to power - and her brutal fall from grace.
In the thick of the jungle of Rwanda's Volcanoes National Park, an infant mountain gorilla has been caught in a snare. If the rope is not removed quickly enough, the young gorilla could lose its hand. In order to remove the snare, a team of veterinarians will first need to sedate the infant's mother. But if the infant screams too much, the three 400-pound adult males that form part of this gorilla group will all attack. Everything must go perfectly, or there's no telling what could happen. And being jungle medicine, things rarely go perfectly. The pioneering group of vets performing this medical intervention is known as Gorilla Doctors. Led by Canadian Mike Cranfield, they work in Rwanda, the Democratic Republic of Congo and Uganda, where the world's last Mountain Gorillas can be found.
A six-week-old lion cub gets separated from his pride and has to face the nighttime terrors of the African bush. Cub-hungry predators, dehydration, and rival lions instinctively primed to kill are just some of the threats ahead. Can this intrepid little misfit find his way back to safety, or will the harsh rules of the wild prevail?