Demi-Mermaids

Humans have red blood due to its iron based hemoglobin.� While Mermaid�s have blue blood due to copper based hemocyanin, with extra paranormal properties, that flows through their supernatural arteries.� Both humans, and mermaids transport oxygen through their blood with the lungs providing the source of said oxygen.� However Mermaids have special lungs with gill like properties that extract oxygen from water rather than air as is the case in humans.� When a Mermaid transmutes to...