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Shell animals have hard, thick shells on the outside. Some can move around, but many live stuck to rocks. Some, like these mussels, have two shells with a hinge. They can open the shell to get food, or pull their soft bodies back in and close up tight. |
This page from one of the Annie's Resource Attic online books is copyright 2009 by Ann Brundige and ann brundige studio. All text, images, sounds, and video clips are copyright 2009 by Ann Brundige and ann brundige studio. For details of this GNU license, see the Terms of Use section of the Annie's Resource Attic web site at www.annbrundigestudio.com. |