David Attenborough narrates this documentary about the giant squid, a creature of legend and myth which even in the 21st century, has rarely been seen in it's natural environment. But now, an international team of scientists think they have finally found their lair, one thousand metres down, off the coast of Japan. This is the culmination of decades of research. The team deploys underwater robots and state of the art submersible vessels for a world first - to find and film the impossible.
Elephant poaching worldwide has reached epidemic proportions. In Kenya, the David Sheldrick Wildlife Trust provides a sanctuary for baby elephants who are its greatest victims, left to die without the nurture and protection of their matriarchal herds. In 2010 a baby elephant named Sities was rescued and brought to the Trust’s Nairobi Nursery to begin her rehabilitation. Her remarkable story was followed by audiences worldwide who watched her progress from day one. Now three years later we catch up with Sities, who has reached the age where she can be integrated into the wild elephant herds of Tsavo East National Park. HOW TO BE A WILD ELEPHANT observes the challenges Sities will face as she leaves the safety of the Nursery and moves on to the next phase of her journey back to freedom.
The Miller-Urey experiment was the first attempt to scientifically explore ideas about the origin of life. Stanley Miller simulated conditions thought be common on the ancient Earth. The purpose was to test the idea that the complex molecules of life (in this case, amino acids) could have arisen on our young planet through simple, natural chemical reactions.
This episode is devoted to the evolution of reptiles. They are not as restricted as their amphibian ancestors, since they can survive in the hottest climates. The reason is their scaly, practically watertight skin. The scales protect the body from wear and tear and in the case of some species of lizard, such as the Australian thorny devil, serve to protect from attack. The horned iguana from the West Indies is also one of the most heavily armoured. The skin is rich in pigment cells, which provide effective means of camouflage, and the chameleon is a well-known example. Temperature control is important to reptiles: they cant generate body heat internally or sweat to keep cool.
In the final challenge of the game of life, raising offspring is the ultimate prize. Continuing the line through the next generation, is the next best thing to immortality. But it’s far from easy... Some parents must risk their own lives for their offspring.
So, you think you know penguins? Experience life in "Penguin Paradise", on South Island, New Zealand, from which the first penguins are supposed to have evolved. Home to unusual penguins like the Little Penguin, and the forest-dwelling crested Fiordland Penguin - it is a penguin wonderland!