203 years ago today, Charles Darwin was born in a manger in Shrewsbury, England, the son of a wealthy doctor and an heiress from the Wedgewood china firm. Although he's most famous for On the Origin of Species--and let's recall the full title, On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life--Darwin wrote about a dozen other books, covering subjects as diverse as earthworms, orchids, climbing plants, sexual selection, and, of course, the evolution of humans and our emotions.
MORE: http://richarddawkins.net/articles/644929-happy-darwin-day
See also...
Darwin's Papers Show the Evolution of His Ideas
http://artsbeat.blogs.nytimes.com/2012/02/10/darwins-documents-show-not-so-careful-evolution-of-his-methods/