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 …

Dec 28, 2025 · Crabs, lobsters, shrimps, and wood lice are among the best-known crustaceans, but the group also includes an enormous variety of other forms without popular names.

May 15, 2024 · Crustaceans are mainly a group of free-living aquatic arthropods that belong to the subphylum Crustacea. This subphylum includes prawns, crabs, lobsters, shrimp, krill, …

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 …

What are Crustaceans? Crustaceans are invertebrate animals in the phylum Arthropoda, subphylum Crustacea, and include the barnacle, crab, crayfish, lobster, shrimp, water flea, and …

Aug 26, 2025 · Crustaceans are a diverse group of invertebrates in the phylum Arthropoda. This group includes over 45,000 described species found globally in various aquatic environments, …

Some crustaceans hatch young that are like miniature adults; others go through a larval stage called a nauplius. Many species, including lobsters, crayfish, barnacles, and crabs are …

Nov 25, 2019 · What is a crustacean? The ultimate guide to crustaceans for kids and adults. Facts, pictures and information on this diverse arthropod group.

Crustaceans (subphylum Crustacea) comprise the group of arthropods (phylum Arthropoda) that includes the familiar crabs, lobsters, shrimps, barnacles, copepods, krill, water fleas, and crayfish.

Most crustaceans live in the ocean, and are one of the pillars of the global marine ecosystem. In much of the open ocean, the primary herbivores feeding on the phytoplankton are crustaceans.