Genovesa Island’s location in the northern hemisphere gave us the opportunity to cross the equator line twice in one week. The natural history of this island is very interesting. Because Galapagos hawks never colonized this island, short-eared owls are the top predators. This island also lacks terrestrial reptiles. The only reptile present is the marine iguana, which is smaller here than elsewhere in the archipelago. That may be the reason why the prickly pear cactus never evolved sharp spines here. Galapagos is truly a unique place on our planet.
National Geographic Endeavour II