galapagos marine iguana

animal wildlife reptile lizard turtle amphibian nature snake tortoise frog zoo serpent crocodile mammal galápagos marine iguana unique species found islands it#39aph39#s world forages sea feeding algae iguanas dark scaly skin helps absorb heat swimming cold ocean waters excellent swimmers flattened tails propel water strong claws gripping rocks bask shore regulate body temperature faces crusted salt expel specialized glands galapagos