Screaming like a stuck mynock.

"It's a theory about where people came from." Guppy says. "As opposed to the story of Creationism, the one that the Bible presents for example, evolution is the theory that humans used to be like apes, but gradually changed over time because individual variations between the apes meant that some were stronger or better adapted than others, so were more likely to have offspring with those adaptations. Does that make sense?"