The Galápagos Islands, Ecuador

An iguana enjoys the sun’s rays as it lies on the surface of one of the rocky islands. Almost half of the birds of the Galápagos, 32% of the plants and 90% of the reptiles do not exist in any other part of the world.  (Martin Bernetti / AFP / Getty Images)

A seal on San Cristobal Island in the Galápagos Archipelago, Ecuador.  (Rodrigo Buendia / AFP / Getty Images)

Two crabs face off on San Cristobal Island.  (Rodrigo Buendia / AFP / Getty Images)

The namesake feet of a blue-footed booby perched on a rock in the Galápagos Islands.  (Steve Stroud / Los Angeles Times)