Have you ever seen a glasswinged butterfly (Greta oto)? You might think that this creature is a figment of one's imagination, perhaps a Photoshopped composite shot of a butterfly blending into a serene setting, but the truth is that it exists! The aptly named insect is a brush-footed (or four-footed) butterfly whose wings appear to be made of glass, though they're not. The tissue within their wi…
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