Isopods are one of the most diverse orders of crustaceans, with many species living in all environments, and are common in shallow marine waters. Unlike most crustaceans, isopods are successful on land (suborder Oniscidea, woodlice), although their greatest diversity remains in the deep sea (suborder Asellota). The isopods are an ancient group with fossils known from the Carboniferous (suborder Phreatoicidea, family Paleophreatoicidae) that only differ slightly from modern southern hemisphere freshwater phreatoicideans.

Epicaridea - The parasitic isopods of Crustacea: a list of families, the species within them, and the references.
Isopod, Pillbug, Sow Bug Information - Gives identifying features and interesting behaviors of sow bugs.
Isopoda - Richard Brusca's article in the Tree of Life project; impressive photographs and a wealth of information.
Ligia Homeshore - Introduction to the neuroscience research in the isopod Ligia exotica: A unique heart pacemaker system and the cardio-regulatory system.
Sow Bugs - The problems of sow bug control are discussed here. Not only using pesticide spray but also understanding moisture conditions.
Meta Description: [ sow bugs description and photos ]
What is an Isopod? - Classification and systematics, anatomy, and evolutionary history.
World List of Marine and Freshwater Isopod Crustaceans - Searchable list from the Smithsonian Institution.
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