¿Cuál es...? ¿Tú qué crees?

Which one is round: an apple or an armadillo? Which one is longer: a snake or an ant? Which one is faster: a puppy or a snail? Which one can reach higher: a cat or a mouse? Perhaps the answers may seem obvious, but if we look at things more carefully, we will see that things change and not everything is what it appears to be at first glance.