John Shaw / Sally lightfoot crabs (Grapsus grapsus) on the beach at Puerto Egas, Santiago Island, Galapagos, May.
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Andy Rouse / Sally lightfoot crab, (Grapsus grapsus), feeding on marine iguana parasites and dead skin, Galapagos
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Alex Mustard / Portrait of Sally lightfoot crab (Grapsus grapsus) on a beach. San Cristobal Island, Galapagos Islands, Ecuador. Tropical East Pacific Ocean.
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Tui De Roy / Dead Sally-lightfoot crab (Grapsus grapsus) washed up in surf, Puerto Egas, James Bay, Santiago Island, Galapagos, Ecuador, May.
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Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) breeding male basking with Sally Lightfoot Crab (Grapsus grapsus) scavenging dead skin, Hood Island, Galapagos Islands, Ecuador
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Michio Hoshino / Marine Iguana (Amblyrhynchus cristatus) group with Sally Lightfoot Crabs (Grapsus grapsus), Galapagos Islands, Ecuador
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Tui De Roy / Sally Lightfoot Crab (Grapsus grapsus) pair sharing boulder with Marine Iguanas (Amblyrhynchus cristatus) to escape high tide, Mosquera Island, Galapagos Islands, Ecuador
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Tui De Roy / Sally Lightfoot Crab (Grapsus grapsus) group sharing boulder with Marine Iguana (Amblyrhynchus cristatus) trio to escape high tide, Mosquera Island, Galapagos Islands, Ecuador
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Tui De Roy / Sally Lightfoot Crab (Grapsus grapsus) group sharing boulder with three Marine Iguana (Amblyrhynchus cristatus) group to escape high tide, Mosquera Island, Galapagos Islands, Ecuador
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Tui De Roy / Sally Lightfoot Crab (Grapsus grapsus) feeding along tide pool edge, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador
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Pete Oxford / Sally lightfoot crab {Grapsus grapsus} San Cristobal Is, Galapagos Islands, Ecuador Book page 100
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Andy Rouse / Sally Lightfoot Crab, (Grapsus grapsus), at sunset, Puerto Egas, Galapagos