There is definitely a “nip” in the air. Winter is on its way. Maybe you have noticed our banded woolly bears diligently working their way across the road or through your flower bed. Why does the ...

We most commonly see woolly bear caterpillars in the fall. I always smile when I see the first one. But have you ever thought about where they come from? I mean, since they are caterpillars, they must ...

In the world of butterflies and moths, many species are most easily recognized by their winged, adult forms, while their time as a larval caterpillar is spent in relative anonymity. While some of ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...