The family structure of elephants - Caitlin O'Connell-Rodwell

73,743 views ・ 2014-04-15

TED-Ed


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If I were to distill the 20 years of elephant research
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that I've done
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into one sentence,
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what would it be?
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What could I tell you?
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I would say that elephants are just like us!
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And what do I mean by that?
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It takes a lot of patience
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to be out there in the field
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and trying to figure out patterns
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of these very slow and intelligent animals.
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But over time, it is true they are very similar to us.
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And you think, "Well, how can I say that?
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Look, they have huge ears,
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they have really long noses.
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What do you mean they're like us?"
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Well, in fact, their families are very similar to ours.
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And family is extremely important to elephants.
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They grow up in very tight-knit families
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and they have extended families.
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And it's just like our family reunions
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where you have all the aunts gathering around
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with all the food they're going to bring and plan,
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and all the boys are thinking,
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"Are we going to play our video games together?
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Are we going to spar?"
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It's very, very similar,
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and it's jubilant, and screaming, yelling, it's really amazing to see.
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But, as soon as you get that family gathering,
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it's just like a wedding or anything else,
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all of the sudden the family politics come out,
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and the lower-ranking individuals in this scene,
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you see the arrow off to the back,
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the lower-ranking individuals already know their station,
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they're going to drink at the muddiest part of the pan
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because the whole family's here and we can't drink at the best water
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because that's reserved for the top-ranking family.
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What's also very similar
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is that you have elders in the group
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that everyone reveres.
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This is the matriarch,
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and the other female is reaching over
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and doing what's called a trunk to mouth
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placing her trunk in the mouth,
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and it's a sign of respect,
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it's kind of like a handshake,
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but it's also like a salute.
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And this salute is learned at a very young age.
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Now, ritual and bonding within the family
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also facilitates coordinated activities.
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So, here's a young female whose calf has fallen into the trough
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and she doesn't know what to do and she panics.
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Well, the older female, that's the matriarch,
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she says, "No problem here," she just scoops the baby out.
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Now, that's not true for a lot of different families,
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they can't coordinate very well,
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the younger females don't really know what to do,
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but the older ones will just get down,
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kneel down together and pick the baby out.
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Another thing that's very similar
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is the coming of age of teenage boys.
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Male elephants at the age of about 12 to 15.
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The biggest elephant in this photograph here
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is an elephant who's about the leave the family.
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He gets too big, he gets a little fresh,
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the adult females had enough of him,
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but he also is independent,
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he wants to go out and play with the guys.
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So what happens then is that you have this all male society,
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very ritual male society.
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Greg is our main dominant bull here,
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you can see him in the middle.
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He's got a huge posse, his following reveres him.
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And it's very interesting how very good leaders,
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very good dominant individuals
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know how to titrate the carrot and the stick.
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This guy's a master at it,
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and there's other bullies out there
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that want to kind of want to create their own little following,
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but they can't do it because they're too agressive.
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And so when he's not around
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they try and sweet talk the underlings to come into their fold,
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and they actually become less agressive.
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So it's very interesting to see how politics play out
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in these male and female societies.
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Now back to the ladies here.
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In a core family group you'll have a mother,
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maybe even a grandmother,
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her daughters and all of their offspring,
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the male and female calves.
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And what's very interesting here
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is that how character makes a difference.
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So each matriarch has a very different character.
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These two characters are kind of curious,
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they're uncertain,
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whereas these other two characters are really agressive.
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"We're going to charge first, ask questions later."
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But then there are also matriarchs that say,
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"Forget it! I'm going to run first
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and then figure it out when we're in the bush
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and it's safe."
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But the wisest matriarch,
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the matriarchs that succeed best
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in all of the studies that have been done,
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is the one that assesses the danger
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and decides is this worth running away from
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or is this not a big deal at all.
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Now being social is super important for elephants
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and of course right at the beginning,
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just like early childhood development,
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socialization is very important.
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Bathing together, eating together, playing together,
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rough housing, this is all very important
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for social development.
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And who hasn't tried to beat their sibling
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to the head of the line coming into the water hole?
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And these relationships from the beginning
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is just like best friends forever for real.
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These females are going to live together for life.
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Now if it's a male, female they might know each other for life,
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but it's really important to develop those bonds early on.
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Those are the relationships that are going to save you later.
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I'll show you a little schoolyard scenario here.
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Where, I think if you just focus on what's happening here
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you can see that we have the bully,
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he's pulling on the trunk of this baby calf,
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and then we have the diplomat
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who's reaching over and saying,
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"No, don't do that! Stop doing that!"
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And then, of course, we have the bystander.
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And how do you get these three different characters
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within the family?
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It's kind of fascinating to think that elephants
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really are just like us.
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And so I got curious about this
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and I thought, "Well, what if you measure
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the difference in character of a dominant female's calf
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versus a lower-ranking female's calf,
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and see what happens in their growing up."
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And so we started doing this.
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And you can see this little guy with his ears out,
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really charging at you.
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The difference between that character
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and the character who holds back,
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wants to touch mom,
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isn't so certain about what's going on here.
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But the other one's charging ahead all confident.
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Well, we started measuring how far away
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a calf will stray from mom,
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how often do they touch others,
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how often do they initiate play,
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and then look at the dominance of the females, of their mothers.
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And what we found is that socializing with the dominant calves
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actually socialize more significantly more than the lower-ranking calves.
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And what it looks like is
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it's not that the lower-ranking calves don't want to play,
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they're actually not allowed to interact
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with the higher-ranking calves.
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They get swatted away from the dominant females.
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and so this is kind of the downside of,
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okay we are very much like elephants,
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elephants are as much like us,
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but it's kind of for better or for worse
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because I can also see this happening in humans
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and maybe we should take a lesson from that.
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One last thing that we found
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is that the males will be the risk-takers,
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they're more independent
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and they're more likely to spend more time away from mom.
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And that's very true in human societies
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and with other social animals.
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So I hope I've convinced you
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that we have very similar lives to elephants
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and that elephants have very individual, durable
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characters that we've measured across years.
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The bully always tends to be the bully
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unless there's some kind of social upset,
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and he decides he better be a softy
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or else he's not going to gain favor at all.
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And then you have the gentle giants
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that are always going to be gentle.
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The young males really need mentoring from the elders,
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and those gentle giants are very good at doing that,
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soliciting them.
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Leaving family is a really hard things for the males,
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but they survive and they figure out who to hang out with.
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So, just to end here, I just wanted to say that
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since they are so similar to us,
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and have these characters,
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I hope when you see them on TV
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or you go out and you're lucky enough to see them in the wild,
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that maybe you'll think of them
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as individual characters deserving of our attention,
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and also deserving of our protection. Thank you.
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