Because my copy of Evolution: Making Sense of Life, by Carl Zimmer and Douglas Emlen, arrived today.
Actually, I lied. My happy face is oscillating back and forth with my frowny face. My frowny face is saying that I’ve got too much work to do to enjoy a new evolution textbook, no matter how well written it is.
You may also have a frowny face when you follow the link to Amazon, because this is an academic textbook and it is priced accordingly. Sorry.