Did you know that the shape of the logotype of Twitter (the Twitter bird) was created by using 13 perfect circles? Inspired by this challenge, Toronto-based artist Dorota Pankowska has created 13 animal illustrations using the same technique: achieving the desired shape just by using 13 circles.
The results are stunning, and she has also included a gif version so that we can see where those thirteen circles are really hiding. Even apparently almost-straight lines are the result of a giant circle, so this is a very clever exercise of graphic design abilities and imagination.

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The Twitter logo was revamped back in 2012, with a flattering new angle and a swifter silhouette. This was achieved by this 13-circle technique, which (when used correctly) can give off awesome results, like the ones created by Pankowska.

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You can see more of her work on her website and portfolio.