Thousands of Marine Iguanas. On Fernandina, there were so many that you had to watch where you walked for fear of stepping on one. They were like spitting, hissing little dinosaurs, but I loved their funny faces and tendency to clutter en masse.
3 Places along the Tourists Should Visit - The West and Home Islands are perfect for a quick and self-meditative retreat. A collective population of both islands sums out right above 600 (Home containing the majority).