Guardian Nature School Contact Blog Project Noah Facebook Project Noah Twitter

A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!
nature school apple icon

Nature School For Teachers - Fall 2020 Launch! visit nature school

Marine Iguana

Amblyrhynchus cristatus


The marine iguana (Amblyrhynchus cristatus) is an iguana located only on the Galápagos Islands that has the ability, unique among modern lizards, to live and forage in the sea, making it a marine reptile. The iguana can dive over 30 ft (10 m) into the water. It has spread to all the islands in the archipelago, and is sometimes called the Galápagos marine iguana. It mainly lives on the rocky Galápagos shore, but can also be spotted in marshes and mangrove beaches

Species ID Suggestions

Sign in to suggest organism ID


Again, great shot, CindyCor! Thanks for your very informative descriptions! That's what citizen science is all about.

CindyCor 8 years ago

Cammie, the Marine iguanas in this picture are babies. They can get pretty big, like 2 feet from nose to the tip of the tail. You can get right next to them. I have several photos (not on Project Noah) where I have my feet in the photo next to them. Sometimes they spit saltwater at you if you try to get your face too close to them. They are great divers and can stay under the water for up to 20 minutes feeding. I have several other photos of marine iguanas in my PN collection here so check them out. I also have photos of the Land Iguanas they also have in Galapagos which are much bigger and yellow in color.

Cammie C. Jeffries
Cammie C. Jeffries 8 years ago

I had no idea that they were divers! How big were they? Can you get close to them? I've never seen iguanas outside of a pet shop. Lol

Seema 8 years ago many!!!!!

Spotted by


Spotted on Sep 13, 2007
Submitted on Nov 7, 2012

Related Spottings

Marine Iguana Amblyrhynchus cristatus Marine Iguana Iguana marina (Marine iguana)

Nearby Spottings

Galapagos Marine Iguana Galapagos tortoise Galápagos Mockingbird Galapagos Land Iguana
Noah Guardians
Noah Sponsors