The image above looks like a pattern some kind of modern fashion designer would come up with, but quite surprisingly, this amazing swirl pattern is found in our lungs. Without this pattern, our lungs would collapse.
The swirls are lung surfactant, a soaplike material that coats the lungs to keep it strong during the constant compressing and expanding. When your lungs are compressed, the surfactant makes this pattern, only nano-particles wide. To read more on how these swirls work and how man-made carbon nano-particles in the atmosphere affect their function, click here.
(via Live Science)