SMASHING MANTIS SHRIMPS
SPEARING MANTIS SHRIMPS
Raptorial arms of "Spearing" and "Smashing" Mantis Shrimps
Although many believe Mantis Shrimps to have extraordinary colour perception, due to having 12 different types of colour photoreceptors in their eyes (compared to humans with 3), this has been shown not to be the case (similar colour discrimination as found in humans), as their brain is not able to integrate these inputs. However, they may gain a speed-of-response advantage in distinguishing between differently cloured prey.
Reference: Thoen, H. H. et al Science 343, 411-413 (2014)