The palm-size blue ring octopus is one of the most deadly creatures in Australia.
Photograph by Subaqueosshutterbug, iStockphoto
The purpose of the candy-colored, spiky bumps on this cecropia moth caterpillar is still a mystery.
Photograph by Cathy Keifer, Dreamstime
When the light is just right, the feathers of the fiery-throated hummingbird glitter and sparkle.
Photograph by Glenn Bartley, BIA, Minden Pictures
The world’s largest monkey, male mandrills have red and blue facial markings and brightly colored rear ends. It’s probably all to attract the ladies.
Photograph by Elisabeth Aardema, iStockphoto
Many nudibranchs boast crazy colors that make them stand out on reefs or ocean floors. That sends would-be predators a clear message: “I am not tasty."
Photograph by Kelpfish, Dreamstime
With its flashy feathers, the oriental dwarf kingfisher looks as if it flew through a painting class. At only five inches (13-14 cm) long, it’s the smallest of the kingfisher species.
Photograph by Kajornyot, Dreamstime
The mood ring of the animal world, the panther chameleon can change color based on its emotions, such as when it gets scared or angry.
Photograph by Lana Langlois, Dreamstime
The amazing parrotfish can change its shape, color, and even gender during its life.
Photograph by Georgette Douwma, Nature Picture Library
The bulging eyes of the mantis shrimp are thought to be the most complex in nature, capable of seeing more colors than any other creature.
Photograph by Whitcomberd, Dreamstime
Eye-popping poison dart frogs can be yellow, orange, red, green, or blue but they aren't just showing off. They're letting potential predators know they're poisonous.
Photograph by Dirk Ercken, Dreamstime
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