Man, whose color perception evolved as a refinement of seeing, likewise developed an intelligence which made it less vital for him to distinguish colors. But the ability to see colors is still the product of harsh necessity for some animals.
So concludes Eye-man Gordon Lynn Walls (of Bausch & Lomb) in the current Journal of Applied Physics. Dr. Walls's theories will hardly quiet the old argument as to whether the bull sees red, or merely the movement of the matador's cape. Dog lovers will continue to protest the thought that their pets live in a colorless grey world.* But Biologist Walls outlines...
To continue reading:
or
Log-In
