They are poikilothermic or cold-blood
been seen eating the feces of crabs and sea lions
only ocean dwelling iguanas in the world
orient themselves so that they absorb sun through the skin
salt glands connected to the nostrils allows them to expel access sea salt
The oral mucosa is the mucous membrane lining the inside of the mouth and consists of stratified squamous epithelium termed oral epithelium and an underlying connective tissue termed lamina propria
First way it will affect the enviroment is that there wont be any trees to soak up water from rainstorms
Second Water wont be brought up to the surface due to the fact there are no roots to do that
Hope this helps