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Grand American Adventures is now part of Exodus Travels.
International Expeditions is now a part of Exodus Travels.
Zegrahm Cofounder & Marine Biologist
Jack is a leading authority on the fishes and marine environments of the eastern tropical Pacific. In 1997, Stanford University Press published his comprehensive volume, The Fishes of the Galápagos Islands, and he received his Ph.D. from Pacific Western University. He is an avid scuba diver, certified divemaster, and Fellow of The Explorers Club.
Join Jack on Ultimate Seychelles, Philippines, Wild Kamchatka, and Melanesia.