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@Dr_Joe_Roberts I think the range and spectral diversity of butterflies photoreceptors both within and among species is at times almost ridiculous. For example: https://t.co/mpk6ycvSxZ
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@natashayoungest Some butterflies have 6 different spectral classes of photoreceptors (UV, V, B, BG, G, R) as compared with the paltry 3 of humans (R, G, B) or honey bees (UV, B, G). https://t.co/mpk6ycvSxZ
1,038 followers
@DavidSevern7 That entirely depends on the insect! Bees tend to be trichromats - like us - but have UV rather than red, + green & blue, whereas their Hymenopteran cousins have a rich variety of photoreceptors (up to 15!) & enjoy a broader spectrum
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