The Mary River turtle, Elusor macrurus, is an endangered short-necked turtle that inhabits the Mary River in south-east Queensland, Australia. This Mary River turtle has algae growing on its head, but it doesn't seem to mind. Perfect as a turtle hat!
Glaucus atlanticus (commonly known as the sea swallow, blue angel, blue glaucus, blue dragon, blue sea slug and blue ocean slug). This little sea slug eats poisonous jellyfish and stores their venom for its personal use