In the second episode, 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.

In the final episode, Richard travels to Madeira to examine what happens to a volcanic island as it nears the end of its life-cycle and starts sinking back into the sea.

Three-part series in which Professor Richard Fortey investigates why islands are natural laboratories of evolution and meets some of the unique and remarkable species that live on them.