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How Many Hearts?

  • June 29, 2012
  • By KIDS DISCOVER

A octopus has three hearts: two that pump blood to its gills, and another one that circulates blood to the rest of its body. All those hearts help make the octopus a very strong swimmer — and a tireless hunter.

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Kids Discover For over 25 years, we’ve been creating beautifully crafted nonfiction products for kids. With a specialty in science and social studies, our team of talented writers, award-winning designers and illustrators, and subject-experts from leading institutions is committed to a single mission: to get children excited about reading and learning.