They clean our beaches and salt marshes, filter out small things in the ocean, and shed their old shell, just to eat it again. What kind of animal could this be? A Fiddler crab! They do all those things to help themselves. They don’t even know they are helping the entire world! Fiddler crabs live in many places. They live in mangroves, salt marshes, and on sandy and muddy beaches. Fiddler crabs are important to salt marshes because when they feed and burrow, they clean the salt marshes and help them grow. They also help make air in the dirt. The destruction of fiddler crab colonies damages the places they live in. Fiddler crabs help the places they live in, just by living there. Fiddler crabs only eat small things, like algae, shrimp, plankton,
