Arthropods are invertebrates in the phylum Arthropoda. They possess an exoskeleton with a cuticle made of chitin, often mineralised with calcium carbonate, a body with differentiated (metameric) segments, and paired jointed appendages. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. They form an extremely diverse group of up to ten million species.
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1,240,587 species Catalogue of Life COL26.10 · CC BY
Shares counted over species below this taxon. Tree of Life v3d, precomputed counts
Not assessed by the IUCN Red List (or no assessment linked via Wikidata).
Dataset v3d. Classification: Catalogue of Life COL26.10 (CC BY 4.0) and Open Tree of Life (CC0). Each photo is credited where it is shown.