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pufferfishcircles

It wasn’t until 2013 that the architects of these perfect circles were discovered with the help of underwater cameras. It turns out they are created by tiny pufferfish as part of their courtship process. How interesting that there are creatures in the world trying to attract mates on aesthetic values alone. It made me curious if there are other examples of this.

http://www.livescience.com/40132-underwater-mystery-circles.html

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