+Annelida are a phylum of [segmented worms](/wiki/segmented_worm), a diverse group found globally in marine, freshwater, and terrestrial habitats. Their soft, cylindrical bodies exhibit [bilateral symmetry](/wiki/bilateral_symmetry), encompassing familiar creatures like earthworms and leeches. These invertebrates play crucial ecological roles, from soil aeration to decomposition.
+## See also
+- [Worm](/wiki/worm)
+- [Earthworm](/wiki/earthworm)
+- [Leech](/wiki/leech)
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