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It
does not take long to reach the dark zone in most caves. Go through
one narrow passage or down a hole and you'll find yourself in total
darkness. This is where the specialists live. Caves are the only habitat
where you will find most of these invertebrates. They never leave
the cave, spending their entire lives in the dark.
Animals that spend their entire lives in the Dark Zone are called troglobites. They have
very small or no eyes, little or no color, are small and have long feelers. |
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