Fernandina is considered the most pristine of the Galápagos Islands because this island has had no species of mammals introduced as many of the other islands. Fernandina has an area of 642 km² (247.9 miles2)and a height of 1,476 meters (4,842 feet), with a summit caldera about 6.5 km (4.0 mi) wide. The caldera underwent a [...]