Creatures of the Underwater Caves

On the islands of the Bahamas, in a vast network of underground, water-filled caves, biologists have discovered remarkable fossil evidence of animals that once inhabited the region, as well as a host of small and intriguing creatures never before seen. In this slide show, meet some of these animals, and learn why the caves, known as "blue holes," are likely to yield other unique finds in years to come.—Rachel VanCott

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