A window in a wingSourced
A butterfly you can see through
Greta oto, the glasswing butterfly, occurs in Central and South America. Much of each wing is transparent, with colored borders around it. Instead of relying on a richly colored wing pattern, it lets the background show through.
A wing can behave a little like a window.
Summary / translation: Unbubly · CC BY-SA 4.0
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Greta oto · Wikimedia contributors
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Reviewed: 2026-10-05