{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

lec04 (dragged) 1

lec04 (dragged) 1 - 2 Lecture 4 Fig 4-2 Charles Darwin as a...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
2 Lecture 4 him, Darwin believed all the life on earth evolved (developed gradually) over millions of years from a few common ancestors. 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 Paci fi c 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. Upon his return to London Darwin conducted thorough research of his notes and specimens. Out of this study grew several related theories: one, evolution did occur; two, evolutionary change was gradual, requiring thousands to millions of years; three, the primary mechanism for evolution was a process called
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}