This book discusses the four classes of fish and the orders within them.

This book features strange aquatic animals from around the world, including the porcupine fish, leafy sea dragon, and sawfish.

"What makes a fish a fish? Trout thinks he knows the answer. "That's easy! Fish have fins, gills, scales, are shaped like me, and live underwater." "Not so fast," answers Mudskipper. "What about a clingfish? They don't have any scales. Or a hagfish? They don't have any fins. Or what about me? I live in and out of the water!" As Trout and Mudskipper explore below and above the world's waters, they are introduced to a multitude of fish in various shapes,...

Readers learn about strange and unique fish.

"Explores the habitats, life cycles, and other characteristics of animals in the Fish classes"--Provided by publisher.

An introduction to various species of electric fish, particularly the electric eel, explaining how they generate and discharge electricity.

"Explains how hagfish excrete slime to evade predators and details other strange abilities of different types of animals"--Provided by publisher.