Ask biologist Marlene Zuk anything you want about human evolution

Marlene Zuk is an evolutionary biologist, and the author of the new book Paleofantasy: What Evolution Really Tells Us About Sex, Diet, and How We Live. It's a cogent and funny look at common myths about human evolution. Today she's here from 12-1 PM Pacific Time to talk to you about evolution.

You can read an excerpt from Paleofantasy here. Start asking questions in comments now, and Dr. Zuk will get to as many as she can between noon and 1 PM today. Please be polite!