Beaver County News | 1927-08-26 | Page 2 | World is Just Gray to Color-Blind Cats

World Is Just Gray to Cclor-BIind Cats Lincoln. Neb. This colorful world of green grass and trees, red meat, brownish-gray mice and yellow dogs is all just gray to cats. At least so says Prof. F. M. Greg; of Nebraska Wesleyan university, who lias been experimenting with the color sense of night-prowling animals. Dogs and raccoons also lack color pcrct ption. he finds. In his experiments the animals were taught to reco-nize various color col-or combinations. They learned that when certain colors were shown they could come up and expe. t to he fed. When shinies of gray corresponding in brightness to the different colors were suh-iituted for the brilliant ra'Ji how hues the animals apparently noted no change in the dinner glials The d"g. a f"X terrier, was qui. test to learn, the cat next and the raccoon the slowest of all.