Susan Savage-Rumbaugh: The gentle genius of bonobos

343,830 views ・ 2007-05-17

TED


Please double-click on the English subtitles below to play the video.

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I work with a species called "Bonobo."
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And I'm happy most of the time,
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because I think this is the happiest species on the planet.
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It's kind of a well-kept secret.
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This species lives only in the Congo.
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And they're not in too many zoos, because of their sexual behavior.
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Their sexual behavior is too human-like
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for most of us to be comfortable with.
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(Laughter)
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But --
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(Laughter)
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actually, we have a lot to learn from them, because they're a very
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egalitarian society and they're a very empathetic society.
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And sexual behavior is not confined to one aspect of their life
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that they sort of set aside.
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It permeates their entire life.
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And it's used for communication.
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And it's used for conflict resolution.
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And I think perhaps somewhere in our history we sort of,
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divided our lives up into lots of parts.
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We divided our world up with lots of categories.
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And so everything sort of has a place that it has to fit.
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But I don't think that we were that way initially.
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There are many people who think that the animal world is hard-wired
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and that there's something very, very special about man.
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Maybe it's his ability to have causal thought.
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Maybe it's something special in his brain
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that allows him to have language.
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Maybe it's something special in his brain
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that allows him to make tools or to have mathematics.
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Well, I don't know. There were Tasmanians who were discovered
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around the 1600s and they had no fire.
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They had no stone tools.
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To our knowledge they had no music.
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So when you compare them to the Bonobo,
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the Bonobo is a little hairier.
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He doesn't stand quite as upright.
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But there are a lot of similarities.
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And I think that as we look at culture,
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we kind of come to understand
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how we got to where we are.
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And I don't really think it's in our biology;
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I think we've attributed it to our biology,
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but I don't really think it's there.
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So what I want to do now is introduce you
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to a species called the Bonobo.
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This is Kanzi.
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He's a Bonobo.
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Right now, he's in a forest in Georgia.
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His mother originally came from a forest in Africa.
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And she came to us when she was just at puberty,
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about six or seven years of age.
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Now this shows a Bonobo on your right,
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and a chimpanzee on your left.
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Clearly, the chimpanzee has a little bit harder time of walking.
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The Bonobo, although shorter than us and their arms still longer,
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is more upright, just as we are.
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This shows the Bonobo compared to an australopithecine like Lucy.
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As you can see, there's not a lot of difference
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between the way a Bonobo walks
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and the way an early australopithecine would have walked.
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As they turn toward us you'll see
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that the pelvic area of early australopithecines is a little flatter
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and doesn't have to rotate quite so much from side to side.
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So the -- the bipedal gait is a little easier.
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And now we see all four.
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Video: Narrator: The wild Bonobo lives in central Africa, in the jungle
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encircled by the Congo River.
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Canopied trees as tall as 40 meters, 130 feet,
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grow densely in the area.
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It was a Japanese scientist
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who first undertook serious field studies of the Bonobo,
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almost three decades ago.
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Bonobos are built slightly smaller than the chimpanzee.
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Slim-bodied, Bonobos are by nature very gentle creatures.
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Long and careful studies have reported many new findings on them.
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One discovery was that wild Bonobos often walk bidpedally.
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What's more, they are able to walk upright for long distances.
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Susan Savage-Rumbaugh (video): Let's go say hello to Austin first and then go to the A frame.
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SS: This is Kanzi and I, in the forest.
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None of the things you will see in this particular video are trained.
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None of them are tricks.
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They all happened to be captured on film spontaneously,
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by NHK of Japan.
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We have eight Bonobos.
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Video: Look at all this stuff that's here for our campfire.
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SS: An entire family at our research centre.
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Video: You going to help get some sticks?
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Good.
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We need more sticks, too.
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I have a lighter in my pocket if you need one.
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That's a wasps' nest.
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You can get it out.
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I hope I have a lighter.
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You can use the lighter to start the fire.
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SS: So Kanzi is very interested in fire.
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He doesn't do it yet without a lighter,
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but I think if he saw someone do it, he might be able to do --
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make a fire without a lighter.
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He's learning about how to keep a fire going.
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He's learning the uses for a fire,
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just by watching what we do with fire.
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(Laughter)
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This is a smile on the face of a Bonobo.
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These are happy vocalizations.
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Video: You're happy.
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You're very happy about this part.
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You've got to put some water on the fire. You see the water?
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Good job.
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SS: Forgot to zip up the back half of his backpack.
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But he likes to carry things from place to place.
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Video: Austin, I hear you saying "Austin."
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SS: He talks to other Bonobos at the lab, long-distance,
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farther than we can hear.
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This is his sister.
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This is her first time to try to drive a golf cart.
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Video: Goodbye.
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(Laughter)
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SS: She's got the pedals down, but not the wheel.
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She switches from reverse to forward
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and she holds onto the wheel, rather than turns it.
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(Laughter)
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Like us, she knows that that individual in the mirror is her.
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(Music)
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Video: Narrator: By raising Bonobos in a culture that is both Bonobo and human,
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and documenting their development across two decades,
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scientists are exploring how cultural forces
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(Laughter)
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may have operated during human evolution.
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His name is Nyota.
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It means "star" in Swahili.
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(Music)
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Panbanisha is trying to give Nyota a haircut with a pair of scissors.
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In the wild, the parent Bonobo is known to groom its offspring.
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Here Panbanisha uses scissors, instead of her hands,
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to groom Nyota.
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Very impressive.
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Subtle maneuvering of the hands is required
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to perform delicate tasks like this.
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Nyota tries to imitate Panbanisha by using the scissors himself.
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Realizing that Nyota might get hurt,
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Panbanisha, like any human mother,
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carefully tugs to get the scissors back.
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He can now cut through tough animal hide.
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SS: Kanzi's learned to make stone tools.
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Video: Kanzi now makes his tools,
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just as our ancestors may have made them,
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two-and-a-half million years ago --
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by holding the rocks in both hands, to strike one against the other.
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He has learned that by using both hands
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and aiming his glancing blows,
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he can make much larger, sharper flakes.
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Kanzi chooses a flake he thinks is sharp enough.
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The tough hide is difficult to cut, even with a knife.
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The rock that Kanzi is using is extremely hard
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and ideal for stone tool making, but difficult to handle,
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requiring great skill.
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Kanzi's rock is from Gona, Ethiopia
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and is identical to that used by our African ancestors
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two-and-a-half million years ago.
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These are the rocks Kanzi used
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and these are the flakes he made.
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The flat sharp edges are like knife blades.
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Compare them to the tools our ancestors used;
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they bear a striking resemblance to Kanzi's.
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Panbanisha is longing to go for a walk in the woods.
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She keeps staring out the window.
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SS: This is -- let me show you something we didn't think they would do.
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Video: For several days now, Panbanisha has not been outside.
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SS: I normally talk about language.
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Video: Then Panbanisha does something unexpected.
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SS: But since I'm advised not to do what I normally do,
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I haven't told you that these apes have language.
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It's a geometric language.
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Video: She takes a piece of chalk
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and begins writing something on the floor.
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What is she writing?
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SS: She's also saying the name of that, with her voice.
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Video: Now she comes up to Dr. Sue and starts writing again.
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SS: These are her symbols on her keyboard.
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(Music)
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They speak when she touches them.
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Video: Panbanisha is communicating to Dr. Sue where she wants to go.
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"A frame" represents a hut in the woods.
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Compare the chalk writing with the lexigram on the keyboard.
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Panbanisha began writing the lexigrams on the forest floor.
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SS (video): Very nice. Beautiful, Panbanisha.
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SS: At first we didn't really realize what she was doing,
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until we stood back and looked at it and rotated it.
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Video: This lexigram also refers to a place in the woods.
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The curved line is very similar to the lexigram.
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The next symbol Panbanisha writes represents "collar."
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It indicates the collar that Panbanisha must wear when she goes out.
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SS: That's an institutional requirement.
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Video: This symbol is not as clear as the others,
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but one can see Panbanisha is trying to produce a curved line
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and several straight lines.
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Researchers began to record what Panbanisha said,
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by writing lexigrams on the floor with chalk.
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Panbanisha watched.
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Soon she began to write as well.
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The Bonobo's abilities have stunned scientists around the world.
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How did they develop?
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SS (video): We found that the most important thing
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for permitting Bonobos to acquire language is not to teach them.
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It's simply to use language around them,
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because the driving force in language acquisition
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is to understand what others, that are important to you, are saying to you.
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Once you have that capacity,
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the ability to produce language
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comes rather naturally and rather freely.
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So we want to create an environment in which Bonobos,
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like all of the individuals with whom they are interacting --
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we want to create an environment in which they have fun,
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and an environment in which the others
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are meaningful individuals for them.
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Narrator: This environment brings out unexpected potential
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in Kanzi and Panbanisha.
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Panbanisha is enjoying playing her harmonica,
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until Nyota, now one year old, steals it.
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Then he peers eagerly into his mother's mouth.
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Is he looking for where the sound came from?
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Dr. Sue thinks it's important to allow such curiosity to flourish.
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This time Panbanisha is playing the electric piano.
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She wasn't forced to learn the piano;
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she saw a researcher play the instrument and took an interest.
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Researcher: Go ahead. Go ahead. I'm listening.
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Do that real fast part that you did. Yeah, that part.
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Narrator: Kanzi plays the xylophone;
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using both hands he enthusiastically accompanies Dr. Sue's singing.
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Kanzi and Panbanisha
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are stimulated by this fun-filled environment,
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which promotes the emergence of these cultural capabilities.
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(Laughter)
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Researcher: OK, now get the monsters. Get them.
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Take the cherries too.
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Now watch out, stay away from them now.
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Now you can chase them again. Time to chase them.
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Now you have to stay away. Get away.
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Run away. Run.
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Now we can chase them again. Go get them.
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Oh no!
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Good Kanzi. Very good. Thank you so much.
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Narrator: None of us, Bonobo or human, can possibly even imagine?
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SS: So we have a bi-species environment, we call it a "panhomoculture."
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We're learning how to become like them.
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We're learning how to communicate with them,
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in really high-pitched tones.
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We're learning that they probably have a language in the wild.
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And they're learning to become like us.
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Because we believe that it's not biology; it's culture.
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So we're sharing tools and technology and language
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with another species.
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Thank you.
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