Mystery deepens for what made tarantulas blue

Sexual display is probably not the answer

tarantula Chromatopelma cyaneopubescens

BLUE MYSTERY  Internal structures, not pigment, puts blue in hairs on the tarantula Chromatopelma cyaneopubescens. What drives the evolution of such color in animals that probably can’t see it still puzzles researchers.

Michael Kern/www.thegardensofeden.org

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