+Arthropods are an ancient, vast phylum of [invertebrate](/wiki/invertebrate) animals defined by their segmented bodies, jointed limbs, and rigid [exoskeleton](/wiki/exoskeleton). This diverse group includes insects, arachnids, crustaceans, and myriapods, making them the most numerous animal phylum on Earth.
+## See also
+- [Crabs](/wiki/crabs)
+- [Spiders](/wiki/spiders)
+- [Insects](/wiki/insects)
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