Prasinohaema skinks, residents of New Guinea, have green bones, green muscles and green tongues. Even their blood is green. And it's also a deadly poison. But how their blood got so green, and so toxic, remains something of a mystery.
Just when it seemed like we knew all the dangers of climate change, science has to go and throw us this curveball. Warmer temperatures make lizards' brains develop differently. Last thing we need is some newly super-intelligent lizards judging us.
The western United States is full of many different species of scincid lizards, commonly known as skinks. These skinks come in all shapes and sizes, and yet they still try to mate with each other. Too bad it's physically impossible.
The marsupials and monotremes that are now found primarily in Australia represent a sort of evolutionary middle ground, mixing together their mammalian features with those of reptiles or amphibians. One ancient marsupial represents a particularly weird case of convergent evolution.