Grizzly bears, dogs, and even cockroaches fart. Do sea anemones? Nope. As for spiders, no one knows. Daniella Rabaiotti and Nick Caruso’s new book,Does It Fart?, is illustrated by Ethan Kocak anddebuts tomorrow in the United States. The book lists a number of animals, answers the titular question, and offers some insight into animal digestions.