Can a Caterpillar Outguess the Weather Experts?
Can a Caterpillar Outguess the Weather Experts?
US · Published Sep 6, 2025
Woolly bear caterpillars are believed to predict winter's severity based on their black and brown band ratios.
Folklore suggests a mostly black caterpillar means a harsh winter, while more brown indicates a milder one.
Experts say the caterpillar's colors reflect diet and growth, not future weather patterns.
Woolly bear as predictor of winter severity
The woolly bear caterpillar, with its distinctive black and brown bands, is once again taking center stage as a whimsical predictor of winter's severity. According to folklore, the width of the brown band on a woolly bear signifies the mildness of the upcoming winter, while a predominantly black caterpillar suggests a harsh, snowy season is on the horizon. But can these fuzzy creatures truly forecast the weather better than modern meteorologists?
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