Of animals' houses br Two sorts are found - br Those which are square ones br And those which are round. br br Square is a hen-house, br A kennel, a sty: br Cows have square houses br And so have I. br br A snail's shell is curly, br A bird's nest round; br Rabbits have twisty burrows br Underground. br br But the fish in the bowl br And the fish at sea - br Their houses are round br As a house can be.