Tuesday, December 1, 2009

If it has eight legs, it’s a spider.


While it's true a spider has eight legs, not all critters with eight legs are spiders. Members of the class Arachnida are characterized, in part, by having four pairs of legs. Arachnids include a variety of arthropods, from ticks to scorpions. You just can't assume that any creepy crawly with eight legs is a spider.

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