Show fish know colors fish know colors said keeper at the ne york aquarium the other day they can distinguish between red and blue or white and green as well as you and I 1 walt and I 1 II 11 prove t he led way to a tank in which were some red and some yellow and some green elsh and in it were arti grottoes painted respectively red and yellow and green the keeper rolled the water with his hand and the fish fled red ones to the red i grotto the yellow ones to the yellow grotto and the green ones to the green grotto know which color shields them from observation best said he now change the grottoes so as to prove my statement a second time he moved the grottoes to different places in the tanks and again roiled the water the s n e tang followed as before each ash darted like a shot to the grotto ot its own color where it knew it auld be 1 st conce cd i |