How to predict winter with wooly worms

Using wooly worms (Pyrrharctia isabella) to predict winter is old American folklore that traces its history back to early Americana. Supposedly, Native Americans taught the pioneers to read wooly worms to predict winter weather. Wooly worm is the common name for the larval stage of the Isabella Tiger Moth. They are also called wooly bears.

Difficulty: Easy

Instructions

Things You'll Need:

• Wooly worms

1. Look for wooly worms under rocks and inside hollow logs.

2. Examine the wooly worm, paying attention to its bands of colors. The wooly worm will curl into a ball when touched or threatened. When they crawl, they can crawl very quickly!

3. Wooly worm forecasters say that the size of the brown band of color will tell you what kind of winter is coming. Legend says that the thinner the brownish red bands, the harsher the winter will be. If the wooly worm is mostly brownish red in the middle, winter will be mild.

4. Wooly worm enthusiasts claim an 85 percent success rate over the last few decades. Scientists tend to disagree and say wooly worm weather prediction is as unscientific as using groundhogs to predict winter weather. The groundhogs likely side with the wooly worms.

5. Whether or not you believe in the power of wooly worms, they can be a fun project for children and adults.