Leviathan Cryptoclidus). Photo copyright Bob Nicholls 2009
Leviathan Cryptoclidus). Photo copyright Bob Nicholls 2009
Megalodon tooth. Photo © The Trustees of the Natural History Museum, London
Megalodon tooth. Photo © The Trustees of the Natural History Museum, London
Blue morpho butterfly in Wild Color exhibit. Photo (c) Field Museum
Blue morpho butterfly in Wild Color exhibit. Photo (c) Field Museum
Violet sea snail (Janthina janthina) in "Wild Color" exhibit. Photo courtesy of the Field Museum
Violet sea snail (Janthina janthina) in