General > General Technical Chat
Why evolution by natural selection didn't make use of RF?
tggzzz:
--- Quote from: RoGeorge on August 27, 2023, 01:12:23 pm ---Life evolved many ways of sensing and signaling, from chemical, to sound, to light in the IR to UV spectrum, but no RF.
--- End quote ---
It has evolved.
The many people that "are" sensitive to WiFi etc are indicating that their genes should be removed from the gene pool. Or maybe I'm too optimistic.
jpanhalt:
--- Quote from: T3sl4co1l on August 28, 2023, 05:47:24 am ---Regional radioactivity, of hazardous levels, that would be meaningful to avoid via sensory input, is largely a modern industrial creation; simpler life like bacteria or mold can adapt, and complex life can just roll the dice.
Tim
--- End quote ---
Radiobacter durans (aka Micrococcus radiodurans) , a very old name (https://en.wikipedia.org/wiki/Deinococcus_radiodurans), is quite resistant to radiation.
One of the things I have wondered about (albeit very briefly) is why organisms do not take advantage of heavier elements like lead, which can be very useful in organic synthesis. Perhaps, it wasn't prevalent in early planets in sufficient quantity to be used as life evolved? See: https://science.nasa.gov/origin-elements (chart attached). [/coppercone_moment) ;)
John
coppercone2:
I don't think its dispersed too well, it tended to sink down deep during planetary formation I imagine.
merging neutron stars make quite a big RF field. and also spritz some weird elements around. maybe that is where you find that kind of life
try something like erroding uranium mountains that constantly sprinkle uranium dust into shallow pools of life creating water, so its like raining uranium or whatever there. what a terrible planet that would be.
snarkysparky:
RF is to quick for biological processes to do phase detection on RF signals. It becomes a scaler, hot or not. which nearly all biology already uses.
SiliconWizard:
--- Quote from: Brumby on August 28, 2023, 05:05:01 am ---
--- Quote from: NiHaoMike on August 28, 2023, 03:47:30 am ---A better question to ask would be why biology hasn't evolved to be able to detect radioactivity at levels well below that which would cause significant damage. My guess is that there simply weren't enough cases where it would have improved survival for evolution to design that in.
--- End quote ---
My thought is that detection isn't necessary. Simply let radioactivity affect biology and see which mutations better cope with it. Same goes for any other potentially malevolent environmental factor.
--- End quote ---
Well, yes. It's hard to tell wether natural radioactivity on Earth hasn't actually triggered some very useful mutations along the way, but it probably has.
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