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Peacock feathers can be lasers (www.science.org)

submitted 2 weeks ago by kalkulat@lemmy.world to c/science@lemmy.world

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“I always like to think that for many technological achievements that benefit humans,” Dawson says, “some organism somewhere has already developed it through some evolutionary process.”

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[–] kalkulat@lemmy.world 2 points 1 week ago* (last edited 1 week ago) (1 children)

OTOH (I was just reading the other day), cats can't even see red (looks grey to them) ... only green and blue. Looks as though higher-freq visible light worked just fine for Feliformia. The organs/antennae needed to send and/or receive RF would be highly ungainly for speedy smaller predatory mammals.

Who knows - maybe some of the dinosaurs -did- use RF?! High EMF from solar CME's might have burned out their receptors.

[–] davidgro@lemmy.world 1 points 1 week ago

Heh, that would be neat. Maybe that's what stegosaurus plates were: a MIMO array.