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Thomas P. Peschak is a National Geographic Photographer, Explorer and Fellow who specializes in documenting the beauty and fragility of the world's oceans. For National Geographic Magazine he has produced 10 feature stories that cover a variety of natural history and conservation issues, from manta rays to marine protected areas. Originally trained as a marine biologist he embraced photojournalism almost two decades ago after realizing his photographs could have greater conservation impact than scientific statistics.