Cofounder & Marine Biologist
A marine biologist and professional naturalist, Jack has spent much of the past two decades traveling on, and lecturing about, the world's oceans. Cofounder of Zegrahm Expeditions and research associate in the Section of Fishes at the Los Angeles County Museum of Natural History, Jack is a leading authority on the fishes and marine environments of the eastern tropical Pacific. For seven years he lived in the Galápagos, where he carried out extensive marine biological studies. 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. A true adventurer and Fellow of The Explorers Club, Jack has led numerous expeditions to the remote corners of the world, participating in polar expeditions as a marine naturalist, photographer, and expedition leader, as well as working with noted scientists and explorers such as Jean-Michel Cousteau. Jack is an avid scuba diver, certified divemaster, and dedicated conservationist. In 2002 he was one of 57 scientists invited by the World Conservation Union (IUCN) to participate in a conference in Hanoi to discuss a strategy for the preservation of marine biodiversity. When not traveling, he manages his own photography business in the Florida Keys.
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