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Originally Posted by gaviston  Do these have to come up for air? Why do they lose their jaw that shoots out like an alien once they grow up? |
As a nymph, a dragonfly breathes through gill like arrangement with oxygen absorbed in the rectum as water flows though. They only start breathing air as they emerge for the transformation to the adult.
They lose the elastic jaw in metamorphosis (why?) + as an adult use their legs like a "basket" capturing other insects.