Linked from
The 21 pages that link to Galápagos Islands, each with the reason it gives.
Darwin's finchesNarrower topic: Most Darwin's finch species live across this island group.
Marine iguanaNarrower topic: Marine iguanas evolved and live only across this archipelago.
ArchipelagoBroader topic: The islands are a well-known example of a hotspot archipelago.
Grapsus grapsusRelated: The crab is a conspicuous inhabitant of the islands' rocky shores.