Mysteries of Evolution

Head & Neck: Home to sharp climatic and ecological gradients, South Africa's Drakensberg is one of the continent's most impressive landscapes. (S1, ep 1) Also in UHD.

In geological terms, humans have only been around for the blink of an eye. However, we've managed to influence the evolutionary path for many animals. (S1, ep 2) Also in UHD.

Some of the most interesting adaptations in the animal world are completely invisible to the naked eye, yet their effect can be massive. (S1, ep 3)

The question of sight can be one of life or death in the animal world. Discover how some creatures have evolved to see perfectly, while others can be nearly invisible. (S1, ep 4)

Cooperation is important. Some animals work together to be social while others put the welfare of the group above their own reproductive potential. (S1, ep 5)

From the shark to the horseshoe crab, meet our planet's 'living fossils' - the creatures that have survived relatively unchanged for millions of years. (S1, ep 6) Also in UHD.