Marineiguanassurprisedsomeoftheislands’earliestvisitors.WhenexplorerCharlesDarwinfirstsawthem,hethoughttheywereugly.Hecalledthem“impsof darkness.”
Theyaretheonlylizardsintheworldthatcanliveandeatatsea.Theyliveonlyhere.Scientistsbelievethattheycamefromlandiguanas.Tosurvive,theycouldnotstaythesame.Overtime,theirbodies changed.
Backspines helpwith balance.
Webbedfeethelpit swim.
SaltySneezes
Marineiguanasswallowsaltwaterwiththeirfood.That’stoomuchsalt.So,theysneezethesalt out!
LookingforHeat
Marineiguanasneedhelptostaywarm.Theyneedthesun.Ifyoureadlastmonth’seditionof Explorer magazine,you’llknowthewordforthis.It’scalledanectotherm.That’sacold‑blooded animal.
