Discoveries of darwin.

Darwin discovered the evolution of life which is the foundation of biology (by providing a unifying logical explanation for the diversity of life.)
He discovered the effects of living things on the environment.
(He also discovered the origins of species and also experimented fossils he found as a naturalist before being a biologist.)
Without his discoveries, the world would not be so successful in term of biology.
The resources of my work: http://en.wikipedia.org/wiki/Charles_Darwin

http://www.lucidcafe.com/library/96feb/darwin.html

http://omni.cc.purdue.edu/~sbenning/el102c/Darwin.html

http://www.blupete.com/Literature/Biographies/Science/Darwin.htm