When I was young I had a fascination with the webs spun by tent caterpillars. You have to click on the above image to see the caterpillars, but you can see the webs scattered in bushes and trees across the entire continental U.S. When they migrate, caterpillars may be seen by the thousands traveling over roads, streets, driveways, and sidewalks. Unlike spiders, tent caterpillars do not use their webs to catch food, they eat leaves, but for protection. The caterpillars return to the web nest each evening and leave again in the warmth of the day to forage for food. They have a very high yuck factor.
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