Science illustrator and animator Eleanor Lutz—the same who brought us this cool graphic of how animals fly—has created this cool animated illustration showing the differences between animal breathing: Human vs birds vs insects. Even if you paid attention at biology class, it's interesting to watch.
Eleanor Lutz is a designer in Seattle who has a bachelor on molecular biology from the University of Washington. You can follow her on her site, Twitter, and Tumblr.
This is part of a series in which we are featuring really cool 2D or 3D illustrations and animations. If you are an illustrator or animator with high quality work, please drop me a line here.