Is This a Tiny Puppy or a Giant Ball?

Is This a Tiny Puppy or a Giant Ball?

Scientists at MIT are struggling with an issue of photographic perspective. At first glance, the image above appears to be of a tiny puppy laying next to a tennis ball.

“But what if it’s actually a normal-sized dog laying next to a giant novelty tennis ball?” asks Dr. Norman Friedlander, an aesthetics researcher. He posed this very question to his colleagues, and what was once dismissed as a cute little puppy photo has become a scientific quandary for the ages.

Via Tombygirl.