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XFilesGeek
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11 Jul 2012, 8:20 pm

edgewaters wrote:
Different group - this is a competitor, not an ally. The males will attack any other chimps entering their territory. The females won't, because if a group of chimps started doing that, some of the females would be occasionally be injured (as the males sometimes are).


Yes, female chimps can and will participate in "defending" the territory. Females in many other social species also actively participate in "defending" territory, often incurring injuries as a result.

Males don't prevent females from participating in activities that could lead to death/injury. For the most part, males could care less. They only "protect" certain females, and only under specific circumstances. There's no universal drive for males to "protect" females in nature.

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This would reduce their ability to compete with rival chimp troops, long-term. Losing a male is only a short-term cost, because it has no signifigant effect on the group's reproduction rates.


Groups with fewer strong males cannot defend their territory nearly as well. Jane Goodall recorded the "death" of a chimpanzee family whose males had all been killed.

And a lack of enough males leads to a lack of genetic diversity. Males are not "expendable."

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Not just mammals either. Many birds are the same. Example, loons. If a predator gets too close, the male sometimes does this thing called the "broken wing dance", basically it makes a big display and tries to look injured. Lots of sound and motion, exactly the kind of thing that would attract a predator. Meanwhile the female quietly tries to exit with the young in tow.


Males and females do this.


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11 Jul 2012, 9:04 pm

XFilesGeek wrote:
Yes, female chimps can and will participate in "defending" the territory. Females in many other social species also actively participate in "defending" territory, often incurring injuries as a result.


Sometimes, but if we're talking chimps, it's usually the males. Females protect the core areas where the young are.

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Males don't prevent females from participating in activities that could lead to death/injury. For the most part, males could care less. They only "protect" certain females, and only under specific circumstances. There's no universal drive for males to "protect" females in nature.


Like I said it is not motivated by a drive to protect the females, but to protect the group i.e. the territory. The males in most species are the first line of defence. This is true of humans too; there are of course exceptions, but the vast, vast majority of soldiers throughout history have been male.

Females in most species tend to look towards protecting the young during an incursion.

Of course there are exceptions. Spotted hyenas, for instance (the females are larger and more aggressive and packs are led by a dominant female). But the females of that species have a rather unusual physiology.

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Groups with fewer strong males cannot defend their territory nearly as well.


Exactly - this is what males have evolved to do. But losing most of the males is not automatic extermination - it might happen, but its not guaranteed. Losing most of the females is basically a guarantee, because the population will not be able to recover for generations, if ever.



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12 Jul 2012, 5:32 am

How do you define luck?
I think that physically, men have advantages when it comes to size and strength. Generally, the majority of average/typical men don't become enmeshed/engulfed in their emotions the way most average/typical women do. This gives men an edge in problem solving and taking remedial action in daily life. Most typical/average men are also taught to think in terms of being a team-player rather and most women are not raised to be this way. The team-player attitude also gives men an advantage in life.

Women have the advantage in longevity; and women generally have a kind of social perception that most men lack.



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12 Jul 2012, 5:38 pm

edgewaters wrote:
XFilesGeek wrote:
Yes, female chimps can and will participate in "defending" the territory. Females in many other social species also actively participate in "defending" territory, often incurring injuries as a result.


Sometimes, but if we're talking chimps, it's usually the males. Females protect the core areas where the young are.


Females protecting the territory translates into females protecting the territory, not just where the young are. Females have been observed not only actively defending the territory from invaders, but participating in "raids" into other territories.

And it's not all males protecting all females. It's alpha males protecting the entire group, including other males.

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Like I said it is not motivated by a drive to protect the females, but to protect the group i.e. the territory.


Precisely. There's no "drive" to "protect" females. Male primates only "protect" females they have a vested interest in mating with; therefore, in humans, any notion of "chivalry" is a cultural construct not reflective of anything that actually happens in nature.

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The males in most species are the first line of defence. This is true of humans too; there are of course exceptions, but the vast, vast majority of soldiers throughout history have been male.


The majority of species on Earth are not "social" and males have little to do with females beyond mating.

Of the social species, the majority of males only come into contact with groups of females during mating season, but they don't stick around to "protect" the female groups (elephants, deer, ect) after mating season ends. Of the males who do stick around, they only "protect" THEIR females. As for primates, alpha male primates don't just "protect" females, they also "protect" lower-status males.

Soldiers being male is cultural, not "instinct." We've already established that human women don't survive disasters at a higher rate than men.

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Females in most species tend to look towards protecting the young during an incursion.


....and their territory, and their fellow females, ect. There's no shortage of data on females participating in "border wars."

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Exactly - this is what males have evolved to do. But losing most of the males is not automatic extermination - it might happen, but its not guaranteed. Losing most of the females is basically a guarantee, because the population will not be able to recover for generations, if ever.


Males are bigger in order to fight other males, not to "protect" females. Males in non-social species who don't stick around are "bigger" too, but it's not to "protect" females.

Losing "most" of the females is not "automatic extermination." The entire species will not die out because of the loss of one family group.

And a lack of genetic diversity will kill a species just as quickly as a lack of "breeding females." Hence, males are not "expendable."


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12 Jul 2012, 6:06 pm

XFilesGeek wrote:
And it's not all males protecting all females. It's alpha males protecting the entire group, including other males.


They're not protecting anyone. It's territory, plain and simple. Any protection that occurs is incidental - although evolution does not care if it is incidental or instinctual, as long as it occurs.

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There's no "drive" to "protect" females.


Who said there was? I never claimed anything like that. You keep putting "protect" in quotes, like it came out of my mouth originally. It didn't.

All I claimed was that males are more expendable.

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in humans, any notion of "chivalry" is a cultural construct not reflective of anything that actually happens in nature.


On this, we agree ... and I think I see now where your misunderstanding of my position has arisen. I am not making an evolutionary argument for chivalry, but for the fact that given a choice, the loss of a male is preferable to the loss of a female (from an evolutionary standpoint).

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The majority of species on Earth are not "social" and males have little to do with females beyond mating.


The majority of species on Earth are microorganisms and lack gender altogether.

But if we want to talk about species with behaviours and instincts close to ours, we're talking mainly about highly social animals who form mixed-gender groups.

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Soldiers being male is cultural, not "instinct."


If it was cultural, it wouldn't be ubiquitous. Moreover - males are adapted to violence, much more than females are. At a physical level. This is clear indication of an evolutionary process, not culture. Culture can't affect physiology.

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Losing "most" of the females is not "automatic extermination." The entire species will not die out because of the loss of one family group.


You're taking that out of context - I was speaking about a group. Familial groups are the basic unit at which evolution and selection operate. Species are only impacted indirectly, by changes taking place at the group level.

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And a lack of genetic diversity will kill a species just as quickly as a lack of "breeding females." Hence, males are not "expendable."


No, not as quickly. It takes much longer than a single generation for inbreeding to wipe out a species. No breeding females will wipe out a species in just 1 generation, unless there are immature females to replace them.

Both entail an equal loss of genetic diversity, but one entails a greater loss of fecundity. Neither is expendable in an absolute sense, but in a relative sense, one is more expendable than the other. Especially when losses are not usually a total loss of one gender or the other, but simply a different rate of loss. If a group must lose 1 more individual per year, evolution dictates that it is preferable if that individual is male. The diversity will be lost one way or the other so diversity simply isn't a consideration.