Marine Iguana on Wildlife.blog

Cuddle puddle of iguanas

Marine Iguana (Amblyrhynchus cristatus)

The only lizard on Earth that forages in the ocean, marine iguanas lose heat rapidly after diving in cold Pacific waters and pile together on land to warm back up — a behavior called “thermoregulatory huddling.”

Endemic to the Galápagos and present on every island year-round, often gathering in dense colonies along the shore.

Wikipedia | iNaturalist | IUCN Red List

Dozens of iguanas blending into the volcanic rock

📍 Isla Isabela, Galápagos Islands

Marine Iguana (Amblyrhynchus cristatus)

The world’s only sea-going lizard, uniquely adapted to dive into cold Pacific currents and graze algae off submerged rocks — then bask on lava to reheat its dark, salt-crusted body.

Abundant and year-round on Isla Isabela, where the island’s vast volcanic coastline provides prime basking and foraging habitat for some of the archipelago’s largest colonies.

Wikipedia | iNaturalist | Galápagos Conservancy

Iguana, Galápagos

Marine Iguana (Amblyrhynchus cristatus)

The world’s only ocean-foraging lizard, this juvenile is soaking up heat on volcanic rock before its next dive into the cold Cromwell Current to graze on algae.

Endemic to the Galápagos and found on every island in the archipelago, year-round.

Wikipedia | iNaturalist | IUCN Red List

Napping iguana

Marine Iguana (Amblyrhynchus cristatus)

The world’s only ocean-foraging lizard, diving up to 12 metres to scrape algae off submerged rocks — then hauling out to bask motionless for hours while its body reheats and nasal salt glands purge excess sea salt.

Abundant and year-round throughout the Galápagos archipelago, with the largest concentrations on Isabela and Fernandina.

Wikipedia | iNaturalist | Galápagos Conservancy