The Galapagos Islands are famous for inspiring Charles Darwin to form his Theory of Evolution based on the biodiversity he'd observed there. This year marks the 150th anniversary of the publication of his "On the origin of species", and the unspoilt islands still fascinate researchers. Some of the plants and animals that live here are found nowhere else on Earth. Today that biodiversity is under threat from an increasing population, tourism and invasive non-native species. The video tracks on this album retraces Darwin's first steps on the Galapagos islands, looks at some of the species...