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Physical Description

These animals are somewhat flattened, and several times longer than wide. The top and sides of animals in this group are covered by a row of tough plates. Underneath they have 7 pairs of legs. On the head is a pair of antennae. Some species can curl up into a ball for protection, this is where they get the name "pillbug."

Other Physical Features: ectothermic ; bilateral symmetry

Sexual Dimorphism: sexes alike


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© The Regents of the University of Michigan and its licensors

Source: BioKIDS Critter Catalog

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