giant katydids images - Joel Sartore

Giant katydid (Stilpnochlora couloniana) at the Budapest Zoo.

Giant katydid (Stilpnochlora couloniana) at the Budapest Zoo.

Joel is a popular keynote speaker with conservation, corporate, and civic groups.

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Joel is the founder of the Photo Ark, a groundbreaking effort to document every species in captivity before it’s too late.

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National Geographic Photographer and Speaker