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| Shrimp | |
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| Palaemon serratus, a caridean shrimp | |
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Shrimp are crustaceans. Shrimp are mainly found in three groups: Caridea, Procarididea, and Dendrobranchiata. There are thousands of species, and usually there is a species adapted to any particular habitat. Any small crustacean which resembles a shrimp tends to be called one.
Adult shrimp are filter feeding benthic animals that live close to the bottom. They can live in schools and can swim rapidly backwards. They have a high tolerance to toxins in polluted areas, and may contribute to high toxin levels in their predators. They play important roles in the food chain and are important food sources for larger animals from fish to whales.
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