Evolution
From 1831 to 1836 Darwin served as naturalist aboard the
H.M.S. Beagle on a British science expedition around the
world. In South America Darwin found fossils of extinct
animals that were similar to modern species. On the
Galapagos Islands in the Pacific Ocean he noticed many
variations among plants and animals of the same general
type as those in South America. The expedition visited
places around the world, and Darwin studied plants and
animals everywhere he went, collecting specimens for
further study.