Tripneustes gratilla images

A Pfaffenhut sea urchin (Tripneustes gratilla) at Aquarium Berlin.

A Pfaffenhut sea urchin (Tripneustes gratilla) at Aquarium Berlin.

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.

Every purchase goes directly to support our mission: getting the public to care and helping to save species from extinction.

National Geographic Photographer and Speaker