marine iguanas

 Male marine iguanas but heads for up to five hours when battling over females. seafaring lizard swishing from side to side  flat tail floating  behind a marine iguana swims through tropical waters and tidal pools These are the only seagoing lizards on the planet.Every few minutes a marine iguana's bulbous rocklike snout shoots above the surface because it needs to  breathe.This creature  swallows a lot of salt water while chomping down on its algae meals. But its body has a way to get rid of  the salt it doesn't need.  A special gland near its eyes collects the salt and when the lizards back on land aaah-chooo! It sneezes out the salty stuff in a burst of tiny flakes.Drifting down like snow the flakes cling to it bumpy head like a funny looking wig. male marine  iguanas on the  Galapagos  islands  foot of a marine iguana accordion  like adapters coming ashore for a rest or a good  meal these lizards use their long sharp  claws to grab on thighs to rocks as they munch seaweed and  scrape algae  off  the  rocks with their sharp teeth.  when food is scarce  for months  marine iguanas. Not only get skinnier but also shorter.Their spines actually shrink and then expand again when the animals  can find more seaweed  treats. from called book national geographic kind  ocean animals  who who in the  deep blue.