Selective forces in the environment change, and we, or any other organisms, respond to those forces, not to some long-range design or some supposed future condition. If we – oh, heck, you know all that.
-- "Skeleton Detective" Gideon Oliver in Aaron Elkins' Uneasy Relations
If you like mysteries and haven't discovered Aaron Elkins yet, his latest novel is a reasonable place to start. Enjoy it yourself, then lend it to someone who might benefit from the passing references to evolution. The "you" who knows all that is Gideon's park-ranger wife, Julie. One or the other of them is always getting invited to a meeting somewhere interesting, with the other usually tagging along. His technical expertise and her clear thinking come in handy when, inevitably, someone gets murdered. This time, the meeting is in Gibraltar and revolves around Neanderthal remains found there. If you want to compare fact with fiction, head on over to John Hawkes' weblog
and then read the book.