Santa Cruz Island is home to the second largest population of giant tortoises in Galapagos. They are dome shaped because they have evolved on this Island where food is plentiful on the ground, in comparison to their relatives with saddleback shapes in places where food is much higher and harder to reach – an impressive fact about how populations are different from island to island. This is just another example of adaptive radiation on the archipelago.
5/29/2025
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National Geographic Gemini
Genovesa Island
Genovesa is considered one of the Galapagos crown jewels, and today it was showing off all of its splendor. Immediately after breakfast we put on our sturdy shoes and set out to explore Prince Philip’s Steps. This area is known for opportunities to observe not only large colonies of nesting Nazca and red-footed boobies, but maybe, just maybe, the short-eared owl which exhibits diurnal behavior on this island. After this walk we got ready for a dip in the Pacific Ocean and snorkeling along the inner coast of this caldera. The afternoon was equally amazing as we disembarked to explore Darwin Bay, along a short and easy trail that was packed with wildlife. Here we observed not only nesting frigatebirds, red-footed boobies, and Nazca boobies, but also a few yellow-crowned night herons. It was another incredible afternoon in the Galapagos Islands.
