3. Galapagos: Islands of Change

From enormous tortoises and deep-diving lizards to fish-eating snakes and birds that hunt giant venomous centipedes, the wildlife of the world-famous Galapagos Islands is unique and bizarre. This wilderness once inspired Charles Darwin's theory of evolution, but it is currently undergoing a human revolution, with tourism driving a population boom. David Attenborough narrates this modern-day story of the Galapagos and reveals whether, in this ever-changing world, its animals can still thrive.