Twelve types of color sensors:-:The colorful mantis shrimp is known for powerful claws that can stun prey with 200 lbs. (91 kilograms) of force. Now, new research finds that these aggressive crustaceans are weird in another way: They see color like no other animal on the planet. "In fact, the 400-million-year-old visual system of the mantis shrimp works more like a satellite sensor than any other animal eye, said study researcher Justin Marshall, a neurobiologist at the University of Queensland in Australia. Instead of processing ratios of stimulation from just a few color receptors, the mantis shrimp has 12 — and it seems to use them to recognize color with minimal effort. "There is no other animal out there that has anything remotely like this," Marshall told LiveScience. "- http://www.livescience.com/42797-mantis-shrimp-sees-color.html?cmpid=556397