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Picture your last seafood meal, and you're probably seeing a crustacean. Crustaceans are mostly water-dwelling invertebrates (no spine), characterized by a jointed body and limbs, and a hard outer shell called an exoskeleton. Although some species live on land, the most common and identifiable crustaceans are ocean-dwellers, such as lobsters, crabs, and even shrimp and barnacles.


Try to imagine your lawn covered in what appear to be tiny lobsters.

Some species of crawfish are eager burrowers, and in wet areas they may just burrow right up into your yard. Home gardeners are often frustrated by the site of mud "chimneys" sticking out of the grass where the crawfish have emerged.

 

 

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Click on the individual crustaceans on the left column to get more facts.