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10 Creepy Endangered Bugs You Shouldn't Squish

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Spruce-Fir Moss Spider

The spruce-fir moss spider isn't nearly as big as it looks in this photo -- they range in size from about .1 to .15 inches -- and that makes it much tinier than its better known cousin, the tarantula.

According to the U.S. Fish and Wildlife Service, the spruce-fir moss spider builds tube-shaped webs between rocks and moss in the spruce-fir forests of North Carolina and Tennessee, but since they need the conditions to be just right (not too wet or too dry), and since the forests have dwindled in size in recent years, this endangered spider faces its biggest threat from habitat loss.

Photo via US Fish and Wildlife Service

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