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Caesarian births directly affecting human evolution
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 (December 6, 2016 at 7:23 pm)KUSA Wrote:(December 6, 2016 at 10:09 am)vorlon13 Wrote: I'm assuming guys into that sort of thing would prefer a single use aperture instead of a design compromised for multiple purposes. Cloaca for the win? 
If you get to thinking you’re a person of some influence, try ordering somebody else’s dog around.
Lifeforms with cloacae aren't hairy.
The granting of a pardon is an imputation of guilt, and the acceptance a confession of it.
"Hey, I sure wouldn't mind getting some more of that Arcturian poontang, remember that time?"
"Yeah, Frost, but the one that you had was male." "It doesn't matter when it's Arcturian, baby." And that would be a cloaca . . . . The granting of a pardon is an imputation of guilt, and the acceptance a confession of it.
Yeah, not buying it. If anything it's not the c-sections them selves, but other evolutionary driven selections (i.e. larger head) and other genetic or non-genetic factors (i.e. nutrition, diabetes, maternal health, advance in medicine.... ).
It's pretty far fetched to see a 10 to 20% change in 60 years due to evolutionary selection. Quote from the article: "The researchers estimated that the global rate of cases where the baby could not fit through the maternal birth canal was 3%, or 30 in 1,000 births. Over the past 50 or 60 years, this rate has increased to about 3.3-3.6%, so up to 36 in 1,000 births.That is about a 10-20% increase of the original rate, due to the evolutionary effect." I found the original. I don't pretend to understand it all. http://www.pnas.org/content/early/2016/1...e874185bed
Being told you're delusional does not necessarily mean you're mental.
I saw the article earlier on another website. I thought it's an interesting topic, a little click-baity perhaps.
My own labor & delivery were uneventful, thankfully, but if there were any complications for me or my baby, any thoughts about evolution or Darwin wouldn't have been at the top of my mind.
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RE: Caesarian births directly affecting human evolution
December 6, 2016 at 11:58 pm
(This post was last modified: December 6, 2016 at 11:59 pm by The Grand Nudger.)
Fuck a bunch of evolution amiright? It can eat a fat dick. Whatever works for us is what I'm goin with, personally.
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 RE: Caesarian births directly affecting human evolution
December 7, 2016 at 1:04 am
(This post was last modified: December 7, 2016 at 1:08 am by Anomalocaris.)
(December 6, 2016 at 12:46 pm)Minimalist Wrote: Human evolution in the Darwinian sense has been screwed since Homo Erectus began caring for injured members of the group. We have skeletal remains showing healed leg fractures going back over a million years bp. In order for that person to survive long enough to have the bone heal other members of the group/clan had to take care of him. Other animals simply do not do that. If a lion is injured in a hunt it either lives or dies on its own. False. The caring of those with a broken bone is probably reflective of heritable behavioral trait which enhances the social support network of the bearer of the trait, which confers a survival advantage upon the bearer. This is Darwinian evolution red in tooth and claw, as evidenced by most human societies now having hospitals. (December 6, 2016 at 5:32 am)downbeatplumb Wrote: Caesarean births are leading to the genes preventing vaginal birth not being eradicated. This means that a higher and higher percentage of births need to be by C section. Yes, but it probably also allowed more babies with more highly developed brains to not die with their mothers at the moment of birth.  (December 6, 2016 at 12:46 pm)Minimalist Wrote: Human evolution in the Darwinian sense has been screwed since Homo Erectus began caring for injured members of the group. We have skeletal remains showing healed leg fractures going back over a million years bp. In order for that person to survive long enough to have the bone heal other members of the group/clan had to take care of him. Other animals simply do not do that. If a lion is injured in a hunt it either lives or dies on its own. Min if you've noticed lions are pretty much fucked. We aren't going anywhere anytime soon. RE: Caesarian births directly affecting human evolution
December 7, 2016 at 1:11 am
(This post was last modified: December 7, 2016 at 1:14 am by Anomalocaris.)
(December 7, 2016 at 1:09 am)BrokenQuill92 Wrote:(December 6, 2016 at 12:46 pm)Minimalist Wrote: Human evolution in the Darwinian sense has been screwed since Homo Erectus began caring for injured members of the group. We have skeletal remains showing healed leg fractures going back over a million years bp. In order for that person to survive long enough to have the bone heal other members of the group/clan had to take care of him. Other animals simply do not do that. If a lion is injured in a hunt it either lives or dies on its own. Yes, but the gene pool that produced the hunting rifle also produced a vast nuclear weapon arsenal under the command of trump. It is by no means clear that we would not actually go somewhat before the soon to be extinct lions. The genes that produced a facility for what we self-flatteringly call intelligence are not absolutely for sure an unbeatable survival advantage upon final analysis.  Quote:False. The caring of those with a broken bone is probably reflective of heritable behavioral trait which enhances the social support network of the bearer of the trait, which confers a survival advantage upon the bearer. This is Darwinian evolution red in tooth and claw, as evidenced by most human societies now having hospitals. I disagree. For a small HG band - the care of an unproductive mouth would have been a serious drain on resources. |
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