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EvC Forum ⇒ Science Forums ⇒ Human Origins and Evolution ⇒

why DID we evolve into humans?

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Author Topic:   why DID we evolve into humans?
coffee_addict
Member (Idle past 506 days)
Posts: 3645
From: Indianapolis, IN
Joined: 03-29-2004

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Message 94 of 231 (127495)
07-25-2004 2:01 PM 		Reply to: Message 15 by Asgara
08-15-2003 6:09 PM

Re: evolution
Asgara writes:
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I don't believe that natural or sexual selection = evolution.
It could. Say that all girls in this world suddenly have a sick fetish for guys with 3 testicles and 3 extra layers of insulating fat. In 20 generations or so, the majority of the male population would be guys with 3 testicles and 3 extra layers of insulating fat. 20 generations after that, you'd see nothing but guys with 3 testicles and 3 layers of fat, because they are extra horny and they easily outgrow the world as we know it.
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The Laminator
​
For goodness's sake, please vote Democrat this November!
This message is a reply to:
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coffee_addict
Member (Idle past 506 days)
Posts: 3645
From: Indianapolis, IN
Joined: 03-29-2004

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Message 123 of 231 (142266)
09-14-2004 12:39 AM 		Reply to: Message 111 by nipok
08-10-2004 5:14 AM

Re: Back to the orginal question, kind of.
nipok writes:
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I believe the constant stretching to reach food higher on the tree tops over the course of generations upon generations would in fact give rise to stronger neck muscles, stronger leg muscles, longer necks, and longer legs.
I think you are a little out-of-date on the issue by about 200 years. Lamark's proposed mechanism, that adaptive charateristics can be passed on to the next generation, has been blown out of the water for quite some time now. We have known for a very long time now that an animal can't pass on its adapted characteristics to its offsprings anymore than a pianist automatically passing on his pianistic skills to his offsprings.
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The Laminator
​
We are the bog. Resistance is voltage over current.
​
For goodness's sake, please vote Democrat this November!
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coffee_addict
Member (Idle past 506 days)
Posts: 3645
From: Indianapolis, IN
Joined: 03-29-2004

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Message 124 of 231 (142267)
09-14-2004 12:44 AM 		Reply to: Message 115 by contracycle
08-12-2004 7:00 AM

contracycle writes:
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Do we know that for sure? Lets do it for a thousand years and then see.
This is more of a response to people that are still clinging on to Lamarkian evolution. What mechanism would you suggest that makes such evolutionary event to occur? I'm talking about a pianist passing on his piano skills to his kids without teaching them. How is it possible?
​
The Laminator
​
We are the bog. Resistance is voltage over current.
​
For goodness's sake, please vote Democrat this November!
This message is a reply to:
 Message 115 by contracycle, posted 08-12-2004 7:00 AM contracycle has not replied
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