Considering the small size of these islands, we feel the more astonished at the number of their aboriginal beings, and at their confined range. Seeing every height crowned with its crater, and the boundaries of most lava-streams still distinct, we are led to believe that within a period, geologically recent, the unbroken ocean was here spread out. Hence, both in space and time, we seem to be brought somewhat near to the great fact -- that mystery of mysteries -- the first appearance of new beings on earth.

-- CHARLES DARWIN


[Photograph: Marine Iguanas, Punta Espinosa]