+Insects are a vast class of [invertebrate](/wiki/invertebrate) [arthropods](/wiki/arthropod) with an exoskeleton, a three-part body (head, thorax, abdomen), six legs, and typically two antennae. They represent the most diverse group of animals, found in nearly all terrestrial and freshwater environments.
+## See also
+- [Arachnids](/wiki/arachnid)
+- [Ecology](/wiki/ecology)
+- [Metamorphosis](/wiki/metamorphosis)
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