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United States Department of Agriculture

Agricultural Research Service

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Right! Arachnids (uh-RACK-nids), which include spiders, are a different class of critters from insects. It's easy to tell arachnids from insects, because insects have six legs and spiders have eight. Actually, spiders have four pairs of jointed legs. Other celebrity arachnids: scorpions, mites and ticks.

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Last Modified: 8/12/2016
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