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  1. Naked Science Forum
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  4. Has natural selection been nullified in humans ?
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Has natural selection been nullified in humans ?

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Offline evan_au

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Re: Has natural selection been nullified in humans ?
« Reply #20 on: 03/07/2023 10:46:26 »
Quote from: alancalverd
Some Australian crows carry burning twigs from forest fires
In Australia, I have heard them called "fire eagles", rather than crows/corvids.
- The Wikipedia link describes it as a "black kite"
https://en.wikipedia.org/wiki/Fire_adaptations#Animal_use_of_fire
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Offline paul cotter

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Re: Has natural selection been nullified in humans ?
« Reply #21 on: 03/07/2023 20:14:06 »
Yep, that's what I found too when I followed up on the story. I still think the corvids are among the most intelligent of birds.
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Offline Zer0

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Re: Has natural selection been nullified in humans ?
« Reply #22 on: 03/07/2023 22:56:21 »
Hmmn...in light of the new Revelations, i now have to discard both the ' Tool & Fire ' options.
(just remembered the Electric Eel, ruled out too)

But then again, where does the Natural seem to turn into Artificial?

Do any Other species conduct Agriculture or Farming?

Surely there ain't no examples of intravenous fluid transfers or caesarian c-sections in the Wild, isn't it?
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Re: Has natural selection been nullified in humans ?
« Reply #23 on: 03/07/2023 23:07:18 »
Quote from: Bored chemist on 01/07/2023 14:54:33

It seems to me that we haven't finished evolving yet.

But there should be a differenciation between Natural & Artificial evolution, isn't it?

Natural Immunity obtained from exposure to the virus & Artificial Immunity acquired thru Vaccination are both Immunities.
But there is kinda a difference between the two, Right?

ps - Evolution seems like the norm, but does the possibility of Devolution exist atall?
Any cases of that already happening in the wild or nature?
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Re: Has natural selection been nullified in humans ?
« Reply #24 on: 04/07/2023 09:31:57 »
Zer0, one species of ant consumes only a fungus which they grow underground. Another herds aphids for their sugary excretions.
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Offline alancalverd

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Re: Has natural selection been nullified in humans ?
« Reply #25 on: 04/07/2023 12:00:11 »
Termite mounds provide solar-driven air conditioning, a zillion years before homo sapiens came up with passive houses and heat pumps.

A neighbor is studying communication and collaboration between fish. Not sure about devolution, which seems only relevant after centralisation, but there is certainly plenty of delegation and specialisation between sharks and cleaner fish - evidence of sharks and rays forming orderly queues and always returning to their favorite cleaner wrasse, doubtless to talk about cricket (she studies Australian reef species) whilst the business is done.     

I'm intrigued to know how some distinct bird species evolved. Swallows and barn owls like to nest inside buildings, and house martins nest under the eaves of human habitations, but barns and houses  are very recent, in evolutionary terms, compared with the time it would take for an entire species to evolve. Or did they always nest in trees as distinct species and suddenly learn that human structures were warmer and drier? So why don't crows do the same?

Some male birds collect shiny objects to attract females. How did the bower bird manage before homo sapiens provided him with metals and plastics? And why did these become more attractive than flowers and fruit?

I watched a pair of pigeons  building a nest in an aircraft hangar. He flew in and out every minute or so, delivering tiny twigs that he presented to her. She rejected about 60%  and wove the rest into an amazingly robust and stable structure on top of a roof girder. So how did he know what size to look for, how did she decide whether each one was going to usefully fit anywhere, and where did they get the design from?

Hummingbirds have a clear target, but hoverflies seem to keep station for several minutes in a random position with no obvious food source nearby, occasionally zoom off somewhere else, then return to exactly the same position. Hovering is the most difficult and energy-intensive exercise in a flying machine, and the best airborne GPS will only get you back within a few feet of your target, so why and how do these little bugs do it?
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Re: Has natural selection been nullified in humans ?
« Reply #26 on: 05/07/2023 21:46:30 »
Quote from: paul cotter on 04/07/2023 09:31:57
Zer0, one species of ant consumes only a fungus which they grow underground. Another herds aphids for their sugary excretions.

This Thread has taken an interesting turn & seems intriguing.
Hope the @OP is Fine with it?
(btw any preference for reference? like PC or Pete or Petro ?
Plz do lemme know)

A few more ruling outs...
Sonar...Bats.
Night vision...Owls.
Infrared...Snakes.

Gosh!
I heard the Egyptian Dung Beetle tracks positions in moonless nights using the Milky Way Galaxy.

Was thinking, what about the act of commiting Suicide?
& Then i found this...WoW!

https://www.popsci.com/insect-self-sacrifice-exploding/
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Re: Has natural selection been nullified in humans ?
« Reply #27 on: 05/07/2023 22:11:27 »
Quote from: Zer0 on 03/07/2023 22:56:21
Do any Other species conduct Agriculture or Farming?
Ants do ranching with aphids and leaf cutter ants grow a fungus that is the only thing they eat.
Edit:
I just saw someone used the exact same examples before me - oops.
« Last Edit: 05/07/2023 22:49:12 by Origin »
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Re: Has natural selection been nullified in humans ?
« Reply #28 on: 09/07/2023 22:06:05 »
Quote from: Origin on 05/07/2023 22:11:27
Quote from: Zer0 on 03/07/2023 22:56:21
Do any Other species conduct Agriculture or Farming?
Ants do ranching with aphids and leaf cutter ants grow a fungus that is the only thing they eat.
Edit:
I just saw someone used the exact same examples before me - oops.

Thanks for not deleting your Post.
I've seen this happen before on the Forum.

Just goes to show, No matter how Different we seem from the Outside, We All are mostly so similar from the Inside.

Final Question!
If everything else around Us is so Remarkably Similar, then what's the Point in being a Speciesist?
(& is dat even a word?)
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Offline Petrochemicals (OP)

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Re: Has natural selection been nullified in humans ?
« Reply #29 on: 09/07/2023 22:51:48 »
Quote from: Zer0 on 09/07/2023 22:06:05
Quote from: Origin on 05/07/2023 22:11:27
Quote from: Zer0 on 03/07/2023 22:56:21
Do any Other species conduct Agriculture or Farming?
Ants do ranching with aphids and leaf cutter ants grow a fungus that is the only thing they eat.
Edit:
I just saw someone used the exact same examples before me - oops.

Thanks for not deleting your Post.
I've seen this happen before on the Forum.

Just goes to show, No matter how Different we seem from the Outside, We All are mostly so similar from the Inside.

Final Question!
If everything else around Us is so Remarkably Similar, then what's the Point in being a Speciesist?
(& is dat even a word?)
Evolutionary dead ends are a thing
Quote
In spiders, 23 species scattered across eight families share a social system in which individuals live in colonies and cooperate in nest maintenance, prey capture, and brood care.]

https://pubmed.ncbi.nlm.nih.gov/17236425/#:~:text=Evolutionary%20%22dead%20ends%22%20result%20from,lowered%20diversification%20rates%20of%20lineages.
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Re: Has natural selection been nullified in humans ?
« Reply #30 on: 20/07/2023 19:58:47 »
@Pete

Many a times i do not Understand your responses, but at times when i do, They make Sense.

ps - Good Work!
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