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What looks like a grisly end for a little shrimp is actually a study in symbiosis in this winning picture from the 2005 Visions of Science Photographic Awards.

Photographer Jim Greenfield took the picture off the coast of Curaçao in the Dutch Antilles islands. The image shows a lizard fish opening wide for a shrimp, while the shrimp cleans its teeth of parasites. The photo took top honors in the Action category of this year's competition, which fielded some 2,200 entries.

A panel of scientists, photographers, and journalists named winners in ten categories, five of which are represented in this gallery. The awards were announced last week in London.

The Visions of Science competition is sponsored by the pharmaceutical company Novartis and the London Daily Telegraph.

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