David Hone reminds me that I’ve been remiss in mentioning this new and very useful website, Ask a Biologist. The idea is so simple, you’ll wonder why there aren’t many more like it—it’s a kind of central clearinghouse where young people can ask questions about biology and get answers from real biologists and experts. If you’re a teacher, turn your kids on to it; tell them to submit a question to the list, and somebody with some expertise will try to answer.