Designer Creates 13 Perfect Circles to Draw Almost Any Animal

Everyone’s favorite blue bird—the Twitter logo—has a well-kept secret hidden in its design: the iconic character was created using 13 perfect circles that overlap and comprise its graceful curved wings and upward gaze.
 Inspired by this little-known fact, Toronto-based art director Dorota Pankowska gave herself a similar challenge: produce 13 different animals each constructed out of 13 circles.