Two butterflies feed on a small lump of feces lying on a rock

A butterfly is a flying insect. When touched by humans, they tend to lose some scales, that look like a fine powder. If they lose too many scales, their ability to fly will be impaired. People who study or collect butterflies (or the closely related moths) are called lepidopterists.

Photo credit: William M. Connolley
Archive - Nominate new image