Any member of the five species of the Prasinohaema (Greek: “green blood”) skinks that live on the island of New Guinea in the South West Pacific, would have been a shoo-in for J.K. Rowling’s wildly imaginative Harry Potter book series. That’s because besides being the only known land vertebrate to have “vivid lime green” blood, the reptiles also sport green bones, green muscles, and even a green tongue!