Crustacean (invertebrate animal) with a short, cylindrical body of ten segments; the first few segments have appendages
Fresh and salt water wetlands and at sea
Filter detritus or algae from the water; some capture small zooplankton. Some are parasites on the gills of fish and large crustaceans.
Fish and other aquatic animals, including whales
Although they are tiny, copepods and other small crustaceans are the chief food of humpback and gray whales.
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