David Attenborough's Galapagos: Evolution

The broadcaster concludes his exploration of the archipelago with a look at how, despite their proximity, no two of the 19 islands are the same. He also uncovers evidence that evolution on Galapagos is occurring faster than Charles Darwin could ever have imagined, and encounters Lonesome George, the last remaining giant Pinta Island tortoise, who died just a few weeks after filming in June 2012