Show Fish Know Colors Fish know colors said a keeper at the New York Aquarium tho other day They can distinguish between red and blue or white and green as well ns you and 1 Walt and Ill prove It Ho led the way to a tank In which were some red and some yellow and some green fish and In It were art llcinl grottoes painted respectively red and yellow and green The keeper rolled tho water with his hand nnd I the fish fled the red ones to the red grotto the yellow ones to the yellow I grotto and the green ones to the green grotto They know which color shields them from observation best said he Now Ill change the grottoes so as to provo my statement n second time He moved the grottoes to different places in the tanks and again rolled the water The snmc thing followed as before Each fish darted like a shot to tho grotto of Its own color where It know It would bo best concealed |