I swear I didn't do this to be pretentious...

"If the conditions change, different types of individuals may now survive or reproduce better and become "naturally selected," with the result that the population undergoes evolutionary change. A classic example is the development of industrial melanism in British Moths: darker moth individuals became relatively commoner than paler individuals as the environment became dirtier during the 19th century, because dark moths resting on a dark, dirty tree were more likely than contrasting pale moths to escape the attention of predators. Much as the Industrial Revolution changed the environment for moths, farming changed the environment for plants."

Guns, Germs and Steel: The Fates of Human Societies.

By Jared Diamond.

Now:

This is the game:

1. Grab the book closest to you.
2. Open to page 123, go down to the fifth sentence
3. Post the text of next 3 sentences on your blog
4. Name of the book and the author
5. Tag three people

I tag all of you. GO! GO FORTH AND BLOG!