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The water boatman uses a thin layer of air as an "external lung" allowing it to breathe underwater. New MIT research has shown that many insects' water-repellent coats trap a thin layer of air on their bodies, allowing them to store and absorb oxygen from the surrounding water. More
Video courtesy John Bush, MIT
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Cool! Looks like the air is trapped in the layer of tiny hairs on the shell of the insect.
Posted 10 months by Anonymous