Marine Iguana
Amblyrhynchus cristatus
Conservation Status
Near ThreatenedReptilia · Squamata · Iguanidae
About
The marine iguana is a species of iguana found only on the Galápagos Islands. It is the only extant lizard that has adapted to a marine lifestyle, with the ability to forage in the sea for algae. It can dive to depths of more than 12 m (39 ft) and can spend up to an hour underwater. It has evolved flattened tail and limbs with webbing to aid swimming, and specialized nasal glands that excrete excess salt.
Fun Fact
Marine iguanas sneeze out concentrated salt through special nasal glands, and the expelled salt often lands on their own heads, giving them a crusty white 'wig' that helps reflect sunlight in the equatorial heat.
Quick Facts
Habitat
Rocky shorelines and intertidal zones of volcanic islands
Diet
Herbivore
Lifespan
12-15 years
Threats
- Introduced Predators
- El Niño Events
- Oil Spills