Crustacean - Wikipedia
Most crustaceans are free-living aquatic animals, but some are terrestrial (e.g. woodlice, sandhoppers), some are parasitic (e.g. Rhizocephala, fish lice, tongue worms) and some are sessile (e.g. …
Crustacean | Definition, Characteristics, Evolution, & Facts ...
Dec 28, 2025 · crustacean, any member of the subphylum Crustacea (phylum Arthropoda), a group of invertebrate animals consisting of some 45,000 species distributed worldwide. Crabs, lobsters, …
What are Crustaceans? – INHS Crustacean Collection
Crustaceans have evolved a variety of specialized body forms and behaviors to cope with both aquatic and terrestrial environments; however, all crustaceans share several characteristics: a hard …
What Is a Crustacean? Definition and Key Characteristics
Jan 12, 2026 · The more than 50,000 crustacean species are generally divided into several major groups, including Malacostraca, Maxillopoda, and Branchiopoda. Malacostraca is the largest and …
Crustacean - Definition, Types, List, Anatomy, and Picture
May 15, 2024 · What is a crustacean in biology. What does it eat. Learn its examples, including habitat, organ systems, reproduction, and life cycle with images.
Crustaceans - A-Z Animals
Oct 5, 2022 · Crustaceans are a large, diverse group of invertebrates of the phylum Arthropoda, whose classification also includes spiders, mites, scorpions and insects. Scientists believe that the number …
Crustacean - New World Encyclopedia
Crustaceans (subphylum Crustacea) comprise the group of arthropods (phylum Arthropoda) that includes the familiar crabs, lobsters, shrimps, barnacles, copepods, krill, water fleas, and crayfish.