Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Gynaephora groenlandica (common name: Arctic Woolly Bear Moth) is a Lymantriid moth found in the Arctic circle found in Greenland and Canada. It is best known for its very slow rate of development. It was once estimated that it had a 14 year life cycle from egg to adult moth, a unique life-cycle among the Lepidoptera with the ability to withstand temperatures below -60°C. The larvae degrade their mitochondria in preparation for overwintering and re-synthesize them in the spring and each instar of the caterpillar takes about a year. Subsequent studies have revised the life-cycle duration to 7 years.
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