David Attenborough asks three key questions: how and why did Darwin come up with his theory of evolution? Why do we think he was right? And why is it more important now than ever before?
Are you genetically destined to despise brussels sprouts? We’re all human, but why are we all so different? With the help of a line-up of dogs and many sets of twins, Prof Alice Roberts explores what makes each of us totally unique.
Remote islands offer sanctuary for some of the planet's strangest and rarest creatures. The rare pygmy three-toed sloth enjoys a peaceful existence on an idyllic Caribbean island, while nesting albatross thrive in predator-free isolation. But island life always comes at a cost. On the Galapagos Islands, young marine iguana must escape an onslaught of deadly racer snakes the moment they hatch from the sand. On the sub-Antarctic island of Zavodovski, life gets more extreme still. Every day, one and a half million penguins risk being battered against the rocks by fierce waves as they try to get on and off the island.
Welcome to an extreme landscape of rock, ice and snow. We tour the mightiest mountain ranges, starting with the birth of a mountain at one of the lowest places on Earth and ending at the summit of Everest. Find out how some of the most secretive animals rise to the challenge of mountain life. Share one of Earth's rarest phenomena, a lava lake that has been erupting for over 100 years. The same forces built the Simian Mountains where we find troops of gelada baboons nearly a thousand strong. In the Rockies, grizzlies build winter dens inside avalanche-prone slopes and climb the peaks to devour abundant summer moths. In another world first, the programme brings us astounding images of a snow leopard hunting on the Pakistan peaks.
India is a vast land of seasonal extremes. Monsoon rains flood the land and make it green but once they are gone, heat and drought builds. It is a challenge for the animals but it also fosters an amazing variety of landscapes filled with diverse life. From semi-aquatic rhinos to desert lions, India's dynamic lands are full of surprises. It also attracts spectacular visitors from afar like the huge flocks of demoiselle cranes.
The savannah is home to some of the greatest herds on Earth, and in this episode, Wild Africa brings you close encounters with these animals. The savannah is Africa's youngest landscape, shaped by the weather and the animals themselves as the continent dried. It is now home to baboons, wildebeest, lions, cheetah, and aardvarks who must struggle through the eight-month dry season to survive.