Mosasaurus: Mighty Ruler of the Sea

by Karen Wagner
Illustrated by Karen Carr


Dive inside the prehistoric sea and follow the story of the enormous Mosasaurus! Explore pictures, learn new vocabulary, and personalize the story with your own narration. Will Mosasaurus make his way through the water safely and find himself a tasty snack?

Explore the Story:

  • ENCOURAGE literacy skills with highlighted narration
  • FOLLOW along with three fun ways to read!
  • LEARN new vocabulary with tappable words and pictures
  • RECORD your own narration & share it with others*
  • SELECT a scene with easy-to-use navigation*
  • KEEP kids in the story with parental controls*

*features available on iOS devices only

This title has been carefully reviewed by paleontologists at the Smithsonian Institution and provides fascinating information on the prehistoric world.

Designed for children ages 3-8

Listen to a sample:

Other Smithsonian apps:

Official Smithsonian Institution licensed app

Smithsonian - SoundPrints