Fortey is on Hawaii to investigate how life colonises a newly-born island. The most remote island group in the world, by some estimates only one new species successfully colonised Hawaii every 35,000 years - yet the Hawaiian Islands teem with a great diversity of life. In search of the evolutionary secrets of how one species becomes many, Fortey encounters beautiful honeycreeper birds whose evolution rivals that of the Darwin's famous finches; carnivorous caterpillars who now can't eat leaves; and giant silversword plants that thrive in parched volcanic soil at 10,000 feet.
Chris investigates how nature's masterminds measure up against human brain power. Looking at a variety of animals, such as ravens, crows, bees and starlings, Chris explores how different animals can use tools, solve complex puzzles, recognise themselves in mirrors and even reason like humans.
David Attenborough reviews the scientific discoveries that have transformed our view of life on earth during his lifetime. How and where did life first begin? How do continents move? How do animals communicate? And why do they behave the way they do? Sir Attenborough shares his memories of the scientists and the breakthroughs that helped shape his own career. He also recalls some of his most memorable attempts to bring new science to a television audience - by standing in the shadow of an erupting volcano as lumps of hot lava crashed around him, by being charged by a group of armed New Guinean tribesmen and the extraordinary sight of chimps hunting monkeys, captured on camera for the first time by Attenborough and his team.