Finally, There's A Book About Which Animals Fart

Grizzly bears, dogs and even cockroaches fart. Do sea anemones? Nope. As for spiders, no one knows.

Photo: bertknot/Ryan Mandelbaum (Flickr)

Daniella Rabaiotti and Nick Caruso's new book, Does It Fart?, is illustrated by Ethan Kocak and debuts today on Kindle. The book lists a number of animals, answers the titular question, and offers some insight into animal digestion. Like many silly ideas, it all started with a tweet - but it's all real science, we promise!

"There's a lot we don't know about animal farts, and that means a lot we don't know about animal digestion," Rabaiotti, a PhD student at University College London and the Zoological Society of London, told Gizmodo. "It's hopefully a lighthearted way to learn a lot of cool stuff you might not have known about animals."

The book started with Rabaiotti's tweet, which soon became an editable spreadsheet with the help of Caruso, a hashtag (#DoesItFart), and even a Gizmodo story. But this is a book which means it's, well, more than a tweet. For example, did you know that:

  • Blue whales have very large farts, very likely the largest in volume of any species. But these expulsions have only been caught on camera a few times.
  • Millipedes release much tinier toots. Their simple digestive tract contains methane-producing bacteria to aid in processing food. Tropical millipede species produce more gas than non-tropical species, since they're bigger.
  • And sea cucumbers don't fart, but there are species of pearlfish that live (and feed) on their genitalia.

Rabaiotti isn't worried about what a fart book might do to her professional career. In fact, she's writing another book soon. She told Gizmodo: "It might be loosely poop-themed."

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