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November 11, 2015 06:59 am PST
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/DxByvE68rkY/how-beetles-breathe-under-wate.html
How beetles breathe under water
From KQED Science:
Surface tension is the property of any liquid that describes how its particles stick together. In the case of water, surface tension is especially strong, enough to form a kind of film where it meets the air, whether at the surface or in a bubble...
If youre a bug the size of a paperclip... surface tension makes a difference. Harnessing it, some aquatic beetles carry the oxygen they need underwater in the form of a temporary bubble, sort of like a natural scuba tank. Others encase themselves in a layer of air and draw oxygen from it their whole lives.
"Natures Scuba Divers: How Beetles Breathe Underwater" (Deep Look)
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/DxByvE68rkY/how-beetles-breathe-under-wate.html
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