Why do worms come out only at night?

Happy Worm Week! Every episode this week will dig deep into the wonderful world of worms. Worms are everywhere – slithering in your compost pile, wriggling in the forest, even tunneling through farm fields!  But have you noticed there are more of them at night? What’s up with that? We asked biologist Andrew Gordus of Johns Hopkins University to help us find the answer.

Got a question that’s worming around in your brain? Send it to us at BrainsOn.org/contact, and we won’t try to wriggle our way out of answering it!