This past Sunday, the U.S. and Canada celebrated Groundhog Day (along with the Super Bowl). According to legend, if a groundhog sees its shadow on February 2nd, after emerging from its burrow, winter will continue for six more weeks. If the groundhog sees no shadow, spring will arrive early. So Groundhog Day involves a reversal

Dear friends, My new novel just went on sale! Secrets of Hominea is a magical middle grade fantasy: a tale of giants, gnomes, queens, and adventurers — and of science and history. It’s for readers age 9 to 14. I hope you’ll buy a copy and help spread the word. You can get a paperback

Scientists used to think prehistoric people domesticated the dog by adopting wolf pups and breeding the friendliest of them or the most obedient. But more recent thinking says dogs domesticated themselves. Caveman Wolf-Breeding? Dogs were first domesticated in Europe or Asia 15,000 to 40,000 years ago. But how? The traditional wolf-breeding theory has some problems.