Animals Made from 13 Circles (2016)

Just doing a Google search for "animals made from circles", you get the usual header full of "Images" and "Videos" crap, then in the actual results links, you have the usual Pinterest linkslop, Facebook linkslop, Reddit linkslop, a bunch of articles written by the designer (now we're getting somewhere). OP's link is finally on page 4 of the search results.

For me, searching "animals made from circles", your comment put this HN thread as the #1 result while the #2 result was a syndicated article about the linked post. When I get more specific and search "animals drawn only from circles" it turns up the linked post as the first result. But my results may be more specific partly because I don't use ad blockers.