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11 intriguing transparent animals

By: Bryan Nelson on Jan. 24, 2011, 11 a.m.

Photo: coda/Flickr

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Perhaps the most well-known types of transparent creatures are jellyfish.

Many of the free-swimming members of the phylum Cnidaria are transparent, a trait that makes them occasionally hazardous because of their sometimes deadly stings, which can surprise swimmers. Their translucent bodies also make them among the most elegant and beautiful of the ocean's creatures.