A lava lizard jumps to catch a fly hovering around the iguanas. The marine iguanas sneeze out excess salt from feeding on algae underwater. There were thousands along a short path on Fernandina Island. We saw many females digging nests, guarding nests or otherwise seeking nesting territory. All the sandy areas of the island were pock marked with their nests. Fernandina is the geologically youngest of all the Galápagos Islands, lots of lava rock means sand is important real estate for the nesting females.

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