GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY
Marine iguanas (Amblyrhynchus cristatus) resting on a rock. These aquatic reptiles feed on marine algae, often diving deep underwater at high tide. Because they cannot regulate their own body temperature, and because they spend long periods of time in cold water, they compensate by basking in the sun to warm up. Marine iguanas consume high levels of salt whilst feeding. They regulate their salinity levels by excreting salt crystals through a nasal gland. Marine iguanas are found in large colonies, only on the Galapagos Islands. Photographed on Baltra, in the Galapagos.
Model release not required. Property release not required.