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Definition, Characteristics, Evolution, & Facts - Britannica
Characteristics of crustaceans | Britannica
Crustacean - Anatomy, Adaptations, Diversity | Britannica
Malacostracan | Definition, Characteristics, Examples, Classification ...
list of crustaceans - Encyclopedia Britannica
Crustacean - Evolution, Paleontology, Adaptations | Britannica
Crustacean - Aquatic, Arthropod, Exoskeleton | Britannica
crustacean - Kids | Britannica Kids | Homework Help
crustacean - Students | Britannica Kids | Homework Help
Crustacean - Arthropod, Aquatic, Decapod | Britannica