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Carl T. Bergstrom @carlbergstrom.com

Via Lee Dugatkin, some very cool evolutionary biology. royalsocietypublishing.org/doi/10.1098/...

Figure 1. Photograph of Airamanna columbia depicting the five false head traits characterized in this study. Photo by Mark Eising (https://www.markeisingbirding.com/): reproduced here with permission.
aug 1, 2025, 10:06 pm • 137 33

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Oscar Silva @oscar-silva.bsky.social

Such nice example of correlational selection.

aug 1, 2025, 10:30 pm • 1 0 • view
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Martha A 💙🏳️‍🌈🏳️‍⚧️🔬 @meanderingwa.bsky.social

VERY interesting. I am not sure I will look at a butterfly the same way again. Looking now for the backward "heads"

aug 1, 2025, 10:45 pm • 1 0 • view
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Barry Goldman @barrygoldman1.bsky.social

so should i expect to see a bunch of these with that end bitten off?

aug 1, 2025, 10:15 pm • 1 0 • view
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Angry Allosaurus @angryallosaurus.bsky.social

Oh yeah, swallowtails (which are big and showy and not particularly fast) have bits of wing missing all the time. Not always the hindwings, and there's no way of telling which predators were confused vs. simply too slow.

Photo of a yellow-and-black colored swallowtail butterfly sitting on a flower with large chunks taken out of both hindwings. Photo borrowed from: https://www.humanegardener.com/beauty-tattered-wings/
aug 1, 2025, 11:17 pm • 3 0 • view
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Barry Goldman @barrygoldman1.bsky.social

hmm.. now i'm thinking. we need a survey of butterfly wing bites. like

image
aug 1, 2025, 11:20 pm • 5 0 • view
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Gaurav Athreya @gauravathreya.bsky.social

The first author @tarunyumnam.bsky.social is here on bluesky!

aug 2, 2025, 3:44 pm • 3 0 • view