TABLE OF CONTENTS CHAPTER 1 Shells and Claws 4 10 16 CHAPTER 2 Surviving in the Ocean CHAPTER 3 Kinds of Crabs ACTIVITIES TOOLS Try This Glossary Index To Learn More 22 23 24 24
CHAPTER 1 SHELLS AND CLAWS A crab walks sideways along the ocean floor Why does it move this way A crab's legs don't face forward like ours They face the sides 4 CHAPTER 1
Crabs are invertebrates Like other crustaceans they don't have any bones Hard outer shells protect their soft bodies shell CHAPTER 1 5