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A draigonflee in its radical final mout, metamorphosin frae an aquatic nymph tae a weenged adult.

In biology, moutin, also known as sheddin, or in mony invertebrates, ecdysis, is the manner in which an ainimal routinely casts off a pairt o its bouk (eften, but nae always, an ooter layer or coverin), either at speceefic times o the year, or at speceefic pynts in its life cycle.