How the World Works

Axolotls have gills, but they are not fish. They are amphibians! Unlike other amphibians, though, axolotls spend their whole lives in the water. With easy text and colorful photos, young readers will have fun finding out more about these unique creatures.

Some ocean creatures are masters of disguise! They use camouflage and cover to outsmart predators or sneak up on prey. Some ocean animals blend in with sand, pebbles, and more. Others hide in coral reefs or beneath the ocean floor. Can you spot the...

A bear sleeps in a den. A snake might coil around a branch to rest. A crab carries its home on its back! Find out where all kinds of animals live—in the water, up in the trees, or burrowed underground. Accessible and fun K–3 level information reveals the...