I Used to be a Fish

I Used to be a Fish

by Tom Sullivan

I used to be a fish. But I didn’t like swimming anymore. So I grew some legs. Inspired by a pet fish and fueled by imagination, a boy tells a whimsical version of his own life story, which mirrors the process of human evolution. Simple, surprising, and innovative, Tom Sullivan’s debut is both a light introduction to the science of evolution and a tribute to every child’s power to transform their lives and to dream big.

Ages: 4-6
Illustrated by: Tom Sullivan
ISBN: 9780062451989
Price: $17.99
Published by: HarperCollins Children's Books


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  • Someone I Wanted to Be
  • Evil Wizard Smallbone
  • Juana and Lucas
  • I Used to be a Fish
  • Replica
  • Frazzled
  • Riding Chance
  • Unbound: A Novel in Verse
  • The Singing Bones
  • Nanette’s Baguette
  • The Happiest Book Ever
  • Star Wars: Ahsoka
  • Newspaper Hats
  • Baby Loves Aerospace Engineering!
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  • Maple & Willow’s Christmas Tree
  • Preaching to the Chickens
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