Some energy traders look instead to woolly worms, small fuzzy caterpillars that are the larva of the Isabella tiger moth, as predictors of winter weather.

• 有些能源交易商现在转向毛毛虫求助，将其视为冬季气候的预测者，这种毛茸茸的昆虫其实是伊莎贝拉虎蛾的幼虫。