YOUR DOG.

Auckland Star, Volume LIX, Issue 23, 28 January 1928, Page 3 (Supplement)

YOUR DOG.

AND WHAT IT SEES. You think you know all about your own dog, perhaps, but do you? "iou probably sum him up in your mind as an eager, loving creature, with spuddy paws and solemn, faithful brown eyes and a fast-wagging tail. But have you ever considered that your dog sees only black and white and is colour blind? Recent tests have proved that. The Union Jack, for instance, is seen by your dog as -white and grey. It has been found oxit that his eyes are dull at noticing patterns. Ihe bull is like the dog in his powers of vision; a red to a bull is really grey. Most birds can sec all colours except blue or violet. Fish see colour and are supposed to be afraid of red. Chickens and monkeys know many different colours. When are you yourself colour-blind? In a heavy twilight. Then your world looks to you as the world looks always to your dog.