10 of the World's Weirdest Spiders

Kauai Cave Wolf Spider

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kauai cave wolf spider creepy photo
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The endangered Kauai Cave Wolf spider gets its name from its one lifelong habitat: the caves of Hawaii, where its born, lives, hunts, and dies.

The spiders are so accustomed to life in the pitch-black caves that they are no longer born with eyes; they feel out food using chemically-based senses. But since the spiders only live in the underground tunnels of Kauai, they are endangered as a result of habitat loss and pollution.

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Photo: Animal Planet