Unusual Sights on the Galapagos Islands

A young tourist marvels at a giant Galapagos tortoise at the Darwin Research Station in Puerto Ayora, Galapagos. Many of the tortoises were rescued from private zoos when the government of Ecuador made it illegal to own these rare and endangered creatures. When Charles Darwin came to the Galapagos Islands in 1835, he noted the different shapes of the tortoise shells on different islands. Years later, the shells inspired his seminal book "Origin of Species," in which he outlined his groundbreaking theory of evolution. (Jeffrey Kofman/ABC News)