The Galápagos Islands in Ecuador are one of the most distinctive travel destinations in the world. The biodiverse archipelago has a high number of plant and animal species that are found nowhere else in the world, and is known for their influence on naturalist Charles Darwin's theory of natural selection. But the biodiversity of the Galápagos is threatened by invasive species, climate change, illicit fishing and the persistent footprint of the very people who come to admire it.