Charles Darwin was really creeped out by marine iguanas, apparently.
”The black Lava rocks on the beach are frequented by large (2–3 ft [60–90 cm]), disgusting clumsy Lizards. They are as black as the porous rocks over which they crawl & seek their prey from the Sea. I call them ‘imps of darkness’. They assuredly well become the land they inhabit.”
EY FATTY BOOM BOOM 