PHILADELPHIA (AP) - Thanks to the "intelligent design" movement, Charles Darwin's birthday is evolving into everything from a badminton party to church sermons this weekend. Defenders of Darwin's theory of natural selection are planning hundreds of events around the world Sunday, the 197th anniversary of his birth, saying recent challenges to the teaching of evolution have re-emphasized the need to promote his work. "The people who believe in evolution ... really just sort of need to stand up and be counted," said Richard Leventhal, director of the University of Pennsylvania's Museum of Archaeology and Anthropology. "Evolution is the model that...