SAN CRISTOBAL, GALAPAGOS ISLANDS, ECUADOR: August 17, 2005 -- GALAPAGOS ISLANDS DAY 1  -- A Volcán Darwin Tortoise (Geochelone nigra microphyes) makes its way across field on San Cristobal Island August 17, 2005 on Day 1 in the Galapagos Islands...Steve McKinley Photo.
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