"The most powerful idea in science"*
Evolution is the theory of how one life form changes into another
The theory of how life originated
*A statement from Scientific American, not Tom Schaber
Note the titles of the articles.
Earth teems with a staggering variety of animals, including 9,000 kinds of birds, 28,000 types of fish, and more than 350,000 species of beetles. What explains this explosion of living creatures1.4 million different species discovered so far, with perhaps another 50 million to go?
The source of life's endless forms was a profound mystery until Charles Darwin brought forth his revolutionary idea of natural selection.