The surprising science of alpha males | Frans de Waal

2,164,251 views ・ 2018-07-09

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00:12
Well, I have known many alpha males in my life,
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chimpanzee alpha males,
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and I'm going to talk about what an alpha male is,
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because I think we can all learn a lot from our close relatives
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where we have alpha males.
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And as an example, I want to give you Amos, a male that I knew
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who was a young male and he was alpha male,
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he was very popular,
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but he got sick
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and he lost his position because, you know, chimpanzee males
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they can spot from a mile away if you are weak
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and they went for him,
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and he lost his position, and then he got sicker and sicker
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until at some point we had to isolate him.
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The group lived on a grassy island,
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and we had to isolate him in a cage,
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but we cracked open the cage so that the rest of the chimps
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still had access to him.
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And what happened was most touching.
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Other chimps would bring food to him,
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they would bring wood wool to him,
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which is this thing that they use to sleep in and build nests out of,
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and females would put the wood wool behind his back.
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He was leaning heavily against the wall,
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and the way we do with pillows to patients in a hospital,
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they were putting that stuff behind his back.
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And I thought, this is the way to go for an alpha male.
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He was loved and respected, and everyone was taking care of him,
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and this is not always how it goes,
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because some males don't end so well when they lose their position.
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So Amos was an example of a male who was liked as a leader,
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and I think the term alpha male, if you look it up on the internet,
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you will find all these business books that tell you how to be an alpha male,
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and what they mean is how to beat up others
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and beat them over the head and let them know that you are boss
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and don't mess with me and so on.
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And basically an alpha male for them is a bully.
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And I really don't like that kind of description,
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because I am actually partly responsible for the term "alpha male"
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because I wrote this book "Chimpanzee Politics,"
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which was recommended by Newt Gingrich to freshmen congressmen.
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I don't know what good it did, but he recommended that book to them,
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and after that the term "alpha male" became very popular.
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But I think it is used in a mischaracterization.
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It's used in a very superficial way
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that doesn't relate to what a real alpha male is.
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And so I'm here to explain what that is.
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The term itself goes back actually much further.
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It goes back to the '40s and '50s, research on wolves,
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and basically the definition is very simple.
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The highest ranking male is the alpha male.
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The highest ranking female is the alpha female.
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Every primate group has one alpha male, one alpha female,
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not more than that, there's only one.
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And I will explain how that goes.
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So first, the body language.
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What you see here is two male chimpanzees who are the same size,
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but one is walking upright, has his hair up,
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has a big rock in his hand, and he's the alpha male.
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The other male is pant-grunting to him,
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is being submissive to him and bowing for him,
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and that is the sort of ritual they need to go through many times a day
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in order to have a stable relationship.
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I'll show you a video from the field.
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What you will see here is a female pant-grunting to an alpha male
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and you will see how that goes.
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The male is approaching,
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she grunts at him.
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(Chimpanzee grunts)
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He has all his hair up
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and he displays.
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I'm actually standing far too close.
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A chimpanzee is far stronger than I am,
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and I just was not very prudent, this particular video.
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So what you saw him do
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is he was lifting himself up and standing on two legs,
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and putting his arms out.
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That's called the bipedal swagger.
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It's a very common posture in high-ranking males,
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and it's very recognizable because humans do this kind of stuff.
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(Laughter)
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Humans do this all the time.
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And what I really like about this particular picture
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is the two old guys to the side.
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This is very chimpanzee.
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In chimpanzees,
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we have usually old males who are over the hill,
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who cannot be alpha male themselves anymore,
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but they start playing games and forming coalitions,
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and behind the backs of others.
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And they become extremely influential,
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and you may actually have old males
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who are more influential than the alpha male himself.
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Just as an example,
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the three males that I used to work with most
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at the Dutch zoo long ago, where I worked,
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and the middle male here is a 17-year-old alpha male.
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The male whom he is grooming on the side is twice as old,
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and this old male has made him the leader.
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So you can imagine that that old male has an enormous amount of power,
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because he has made the alpha male alpha male.
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The male on the right
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is individually the strongest male.
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In captivity, you can test it out,
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and you can know that this male has no trouble with either one.
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He has only trouble with the combination of the two.
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And so the coalition formation that goes on in chimpanzee society
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makes it much more complex than you think.
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It means, for example,
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that the smallest male in a group can be the alpha male.
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You don't need to be the biggest and strongest male.
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The smallest male, if he has the right friends and keeps them happy,
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or he has female support,
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he can be the alpha male.
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So the coalition system makes everything complex,
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and I'm always waiting here in the US
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for the primaries, the end of the primaries,
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because that's a moment where you need to demonstrate unity.
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Now let me first show you how the unity is shown in chimpanzees.
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What you see here is two males on the left
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who are standing together.
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You also see the big canine teeth that they have.
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And they're standing together and they demonstrate to the rest of the group,
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"We are together. We are a unit."
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The males on the right are walking together in synchrony.
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That's another way of demonstrating that you are together.
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And so demonstrating unity is extremely important
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in a coalition system,
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and as I said, in the primaries always I'm waiting for that moment
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because then you have two members of the same party
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who have been fighting with each other,
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and they need to come together at some moment.
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And it leads to very awkward situations.
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People who don't like each other need to embrace each other
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and stand together,
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and that's absolutely essential for the unity of the party,
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and if you don't do that, the party may fall apart.
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And so if it doesn't go well, like in this particular case --
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(Laughter)
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then the party is in deep doo-doo
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because they have not demonstrated unity.
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So that's a very important part of the coalition system,
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and that's something that we share between humans and chimpanzees.
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Now, how do you become an alpha male?
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First of all, you need to be impressive and intimidating
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and demonstrate your vigor on occasion
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and show that you are very strong,
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and there's all sorts of ways of doing that.
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But other things that you need to do is you need to be generous.
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So, for example, males who go on a campaign
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to dethrone the leader,
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which may take two or three months
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where they're testing all the coalitions in the group,
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they also become extremely generous.
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They share food very easily with everyone.
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Or they start to tickle the babies of the females.
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They're normally, male chimpanzees, not particularly interested in infants,
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but when they are campaigning like that,
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they get very interested in infants and they tickle them,
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and they try to curry favor with the females.
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(Laughter)
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So in humans, of course,
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I am always intrigued by these men who are candidates
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and hold babies up like this.
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This is not particularly something that babies like --
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(Laughter)
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but since it is a signal to the rest of the world,
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they need to hold them in the air.
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And I was really intrigued by,
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when we had a female candidate in the last election,
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the way she held babies was more like this,
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which is what babies really like.
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But she of course didn't need to send the message
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that she could hold a baby without dropping it,
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which was what the man was doing.
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So this is a very common tactic,
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and male chimpanzees,
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they spend a lot of time currying favor with all sorts of parties
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when they are campaigning.
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Now, what are the privileges and the costs
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of being an alpha male?
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The biggest privilege is females.
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Food is really irrelevant.
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Male chimpanzees can go a week without food
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if there's a female in estrus and they're sexually interested in her.
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Food is secondary to sex.
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And so the male chimpanzees --
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and we evolutionary biologists, of course, we have an explanation for this,
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is that sex leads to reproduction,
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and reproductive success is the measure of evolution.
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That's how everything evolves.
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And so if males can enhance their reproductive success
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by being high ranking,
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you get automatically the ambition to be high ranking in the males.
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So that's the privilege.
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The costs, one cost is of course
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that you need to keep your partners happy.
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So if you come to power with the support of an old male,
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you need to let that old male mate with females.
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If you don't do that, that old male is going to get mad at you,
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and you're going to lose him as a partner.
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So there's a transaction going on.
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If you become alpha male this way, you need to keep your partners happy.
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And so that's one of the costs.
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The second cost is that everyone wants your position.
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Alpha male position is a very important position,
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and everyone wants to take it from you,
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and so you constantly have to watch your back.
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You have to be extremely vigilant.
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For example, you have to disrupt the coalitions of others
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and that's what male chimpanzees do quite a bit.
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Divide and rule strategies, they have.
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And so that's a very stressful situation, and we actually have data on this.
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The data comes from the field,
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from baboons not chimpanzees in this case,
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where they did fecal samples on the baboons
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and they analyzed them for glucocorticoids.
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And what you see here is a graph
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where you see that the lower ranking the male baboon is,
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the higher is his cortisol level
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in the feces,
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but the alpha male, as you see,
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has just as high a level as the lowest-ranking males,
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and so you may think that being alpha male is nice and dandy and is wonderful,
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but it's actually a very stressful position,
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and we can demonstrate that physiologically.
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Now, what are the obligations?
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And here, for me, it gets really interesting,
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and it deviates very much from your typical image of the alpha male.
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The alpha male has two sorts of obligations.
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One is to keep the peace in the group.
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We call that the control role,
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to control fights in the group,
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and the second is to be the most empathic,
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the consoler in chief, basically, of the nation, so to speak.
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So first of all, keeping the peace.
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This is a male who stops a fight between two females.
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Two females on the left and the right
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have been screaming and yelling at each other over food,
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because food is very important for the females,
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and so he stops the fight between them and stands between them like this.
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And it's very interesting to me that alpha males, when they do this,
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they become impartial.
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They don't support their mom or their best buddy.
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No, no, they stop fights,
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and they come up for the underdog in general.
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And this makes them extremely popular in the group,
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because they provide security
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for the lowest-ranking members of the group.
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And so they become impartial,
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which is an unusual condition for a chimpanzee to be in,
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because they're usually very fond of their friends and so on,
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and these alpha males who are good at this,
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they can be very effective at keeping the peace in the group.
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And the second thing they do is they show empathy for others.
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Now, I do an enormous amount of research on empathy,
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and I don't have time to go into it,
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but empathy is nowadays a topic that we study in rodents and dogs
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and elephants and primates,
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all sorts of animals.
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And what you see here is two bonobos.
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The one in front
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has been beaten up in a fight.
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The one in the back puts her arms around her and consoles her.
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This is also actually how we measure empathy in young children,
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by looking at how they respond to distressed individuals.
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And high-ranking males, they do a lot of this.
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High-ranking males provide an enormous amount of comfort in the group,
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and they go to places where there are earthquakes
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or hurricanes
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and they provide comfort.
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The pope does this. The presidents do this.
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All the leaders in the world have to do this job.
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The queen does it and so on.
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They all have to do this job,
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so providing consolation, and that's a very important task.
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And males who are good at these two,
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keeping the peace and providing comfort,
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they become extremely popular leaders,
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and there's actually some self-interest involved in it.
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They don't do it just for the group,
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because it also stabilizes their position.
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The more popular a male becomes as alpha male
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and the more the rest of them respects them and looks up to them,
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the better their position is defended
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in case it's going to be challenged by somebody else,
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because then, of course, the whole group is going to support that male
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because they want to keep a leader who is good for them.
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So the group is usually very supportive of males who are good leaders,
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13:10
and it's not supportive at all of bullies.
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And when bullies lose their position,
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they may end up in a very bad situation there.
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This is data actually on the consolation behavior.
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This is data on consolation in chimpanzees,
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and you see for the medium- and low-ranking individuals,
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the females do more of it than the males.
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This is basically the whole community.
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And this is true for all the mammal studies on empathy
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is that females have more of it than males.
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But look at the alpha male.
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The alpha male does far more than anybody else.
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And so that's the data on alpha males being the consoler in chief, basically.
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The last thing I want to say is something about alpha females.
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This is a picture of Mama, the alpha female in the Arnhem zoo
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where I used to work,
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who is now all over the internet,
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I think a hundred million clicks at the moment,
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for a video of her dying at the age of 59,
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which happened last year.
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And Mama was an absolute centrum of the group.
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So she was not physically capable of dominating the males.
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She ranked below the males, but she was the center of the community,
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and if there was big trouble in the community,
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everyone would end up in the arms of Mama.
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And so she was a very important figure.
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And so I don't want to minimize the position of alpha females
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in the chimpanzee group.
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And then we have a species that is equally close to us
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as the chimpanzee, the bonobo.
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We often forget about the bonobo, but the bonobos have a matriarchal society
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and the alpha individual is a female, generally.
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Generally, it's a female who is at the top of the community,
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and we know much less about how this is done
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and how they get to that position, and what they do with it,
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because we know much less about bonobos in general.
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But I do want to emphasize
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that the alpha in a group doesn't need to be a male,
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and that actually in one of our close relatives, it is a female.
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So the message I want to leave you with
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is that if you are looking at men in our society
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who are the boss of, let's say,
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a family or a business or Washington or whatever,
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you call them alpha male,
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you should not insult chimpanzees
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by using the wrong label.
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(Laughter)
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You should not call a bully an alpha male.
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Someone who is big and strong and intimidates and insults everyone
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is not necessarily an alpha male.
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An alpha male has all sorts of qualities,
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and I have seen bully alpha males in chimpanzees,
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they do occur,
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but most of the ones that we have
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have leadership capacities
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and are integrated in their community,
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and, like Amos at the end,
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they are loved and respected,
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and so it's a very different situation than you may think.
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And I thank you.
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(Applause)
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