DURHAM, N.C., Aug. 22 (UPI) -- One wouldn't think camouflage would be a winning strategy in the open ocean, but for fish with shimmering silver scales like herring, sardines and mackerel, camouflage regularly beats super sight.
Unlike human eyes, the eyes of many marine species can process light polarization. Scientists long assumed this ability rendered the silvery disguise of tuna, amberjack, barracudas and others ineffective.