Abstract:14Tarantulas paradoxically exhibit a diverse palette of vivid colouration despite their crepuscular 15 to nocturnal habits. The evolutionary origin and maintenance of these colours remains a 16 mystery. In this study, we reconstructed the ancestral states of both blue and green colouration 17 in tarantula setae, and tested how these colours correlate with the presence of stridulation, 18 urtication, and arboreality. Green colouration has likely evolved at least eight times, and blue 19 colouration is likely… Show more
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