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

73,604 views ・ 2014-04-15

TED-Ed


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

00:06
If I were to distill the 20 years of elephant research
0
6186
3002
00:09
that I've done
1
9188
1435
00:10
into one sentence,
2
10623
1960
00:12
what would it be?
3
12583
1464
00:14
What could I tell you?
4
14047
1666
00:15
I would say that elephants are just like us!
5
15713
3962
00:19
And what do I mean by that?
6
19675
1633
00:21
It takes a lot of patience
7
21308
2120
00:23
to be out there in the field
8
23428
1168
00:24
and trying to figure out patterns
9
24596
1416
00:26
of these very slow and intelligent animals.
10
26012
2961
00:28
But over time, it is true they are very similar to us.
11
28973
4466
00:33
And you think, "Well, how can I say that?
12
33439
1951
00:35
Look, they have huge ears,
13
35390
1472
00:36
they have really long noses.
14
36862
1944
00:38
What do you mean they're like us?"
15
38806
1582
00:40
Well, in fact, their families are very similar to ours.
16
40388
3920
00:44
And family is extremely important to elephants.
17
44308
3435
00:47
They grow up in very tight-knit families
18
47743
2836
00:50
and they have extended families.
19
50579
2504
00:53
And it's just like our family reunions
20
53083
1833
00:54
where you have all the aunts gathering around
21
54916
2171
00:57
with all the food they're going to bring and plan,
22
57087
2051
00:59
and all the boys are thinking,
23
59138
1201
01:00
"Are we going to play our video games together?
24
60339
1827
01:02
Are we going to spar?"
25
62166
1596
01:03
It's very, very similar,
26
63762
1792
01:05
and it's jubilant, and screaming, yelling, it's really amazing to see.
27
65554
4086
01:09
But, as soon as you get that family gathering,
28
69640
3175
01:12
it's just like a wedding or anything else,
29
72815
1871
01:14
all of the sudden the family politics come out,
30
74686
2629
01:17
and the lower-ranking individuals in this scene,
31
77315
2796
01:20
you see the arrow off to the back,
32
80111
2171
01:22
the lower-ranking individuals already know their station,
33
82282
2369
01:24
they're going to drink at the muddiest part of the pan
34
84651
2633
01:27
because the whole family's here and we can't drink at the best water
35
87284
3700
01:30
because that's reserved for the top-ranking family.
36
90984
3415
01:34
What's also very similar
37
94399
1436
01:35
is that you have elders in the group
38
95835
2500
01:38
that everyone reveres.
39
98335
1752
01:40
This is the matriarch,
40
100087
1396
01:41
and the other female is reaching over
41
101483
1900
01:43
and doing what's called a trunk to mouth
42
103383
1793
01:45
placing her trunk in the mouth,
43
105176
1667
01:46
and it's a sign of respect,
44
106843
1503
01:48
it's kind of like a handshake,
45
108346
2304
01:50
but it's also like a salute.
46
110650
1950
01:52
And this salute is learned at a very young age.
47
112600
3253
01:55
Now, ritual and bonding within the family
48
115853
2839
01:58
also facilitates coordinated activities.
49
118692
3290
02:01
So, here's a young female whose calf has fallen into the trough
50
121982
3715
02:05
and she doesn't know what to do and she panics.
51
125697
2119
02:07
Well, the older female, that's the matriarch,
52
127816
2544
02:10
she says, "No problem here," she just scoops the baby out.
53
130360
3342
02:13
Now, that's not true for a lot of different families,
54
133702
2839
02:16
they can't coordinate very well,
55
136541
1942
02:18
the younger females don't really know what to do,
56
138483
2270
02:20
but the older ones will just get down,
57
140753
2152
02:22
kneel down together and pick the baby out.
58
142905
3143
02:26
Another thing that's very similar
59
146048
1591
02:27
is the coming of age of teenage boys.
60
147639
3286
02:30
Male elephants at the age of about 12 to 15.
61
150925
2913
02:33
The biggest elephant in this photograph here
62
153838
2917
02:36
is an elephant who's about the leave the family.
63
156755
2976
02:39
He gets too big, he gets a little fresh,
64
159731
2273
02:42
the adult females had enough of him,
65
162004
2084
02:44
but he also is independent,
66
164088
1357
02:45
he wants to go out and play with the guys.
67
165445
2921
02:48
So what happens then is that you have this all male society,
68
168366
3584
02:51
very ritual male society.
69
171950
1889
02:53
Greg is our main dominant bull here,
70
173839
2333
02:56
you can see him in the middle.
71
176172
1284
02:57
He's got a huge posse, his following reveres him.
72
177456
4214
03:01
And it's very interesting how very good leaders,
73
181670
2626
03:04
very good dominant individuals
74
184296
1631
03:05
know how to titrate the carrot and the stick.
75
185927
3410
03:09
This guy's a master at it,
76
189337
1800
03:11
and there's other bullies out there
77
191137
1366
03:12
that want to kind of want to create their own little following,
78
192503
2475
03:14
but they can't do it because they're too agressive.
79
194978
2276
03:17
And so when he's not around
80
197254
1834
03:19
they try and sweet talk the underlings to come into their fold,
81
199088
3518
03:22
and they actually become less agressive.
82
202606
2815
03:25
So it's very interesting to see how politics play out
83
205421
3251
03:28
in these male and female societies.
84
208672
4165
03:32
Now back to the ladies here.
85
212837
1782
03:34
In a core family group you'll have a mother,
86
214619
2968
03:37
maybe even a grandmother,
87
217587
1454
03:39
her daughters and all of their offspring,
88
219041
1886
03:40
the male and female calves.
89
220927
2327
03:43
And what's very interesting here
90
223254
1669
03:44
is that how character makes a difference.
91
224923
2543
03:47
So each matriarch has a very different character.
92
227466
3001
03:50
These two characters are kind of curious,
93
230467
2121
03:52
they're uncertain,
94
232588
1801
03:54
whereas these other two characters are really agressive.
95
234389
3337
03:57
"We're going to charge first, ask questions later."
96
237726
3749
04:01
But then there are also matriarchs that say,
97
241475
2453
04:03
"Forget it! I'm going to run first
98
243928
1750
04:05
and then figure it out when we're in the bush
99
245678
1629
04:07
and it's safe."
100
247307
1213
04:08
But the wisest matriarch,
101
248520
1620
04:10
the matriarchs that succeed best
102
250140
2127
04:12
in all of the studies that have been done,
103
252267
2337
04:14
is the one that assesses the danger
104
254604
2502
04:17
and decides is this worth running away from
105
257106
3034
04:20
or is this not a big deal at all.
106
260140
2138
04:22
Now being social is super important for elephants
107
262278
3588
04:25
and of course right at the beginning,
108
265866
2250
04:28
just like early childhood development,
109
268116
1920
04:30
socialization is very important.
110
270036
2129
04:32
Bathing together, eating together, playing together,
111
272165
2836
04:35
rough housing, this is all very important
112
275001
2501
04:37
for social development.
113
277502
1555
04:39
And who hasn't tried to beat their sibling
114
279057
1750
04:40
to the head of the line coming into the water hole?
115
280807
3666
04:44
And these relationships from the beginning
116
284473
3916
04:48
is just like best friends forever for real.
117
288389
2169
04:50
These females are going to live together for life.
118
290558
2999
04:53
Now if it's a male, female they might know each other for life,
119
293557
3167
04:56
but it's really important to develop those bonds early on.
120
296724
3583
05:00
Those are the relationships that are going to save you later.
121
300307
3332
05:03
I'll show you a little schoolyard scenario here.
122
303639
3585
05:07
Where, I think if you just focus on what's happening here
123
307224
3020
05:10
you can see that we have the bully,
124
310244
2812
05:13
he's pulling on the trunk of this baby calf,
125
313056
3193
05:16
and then we have the diplomat
126
316249
1876
05:18
who's reaching over and saying,
127
318125
1181
05:19
"No, don't do that! Stop doing that!"
128
319306
2082
05:21
And then, of course, we have the bystander.
129
321388
2410
05:23
And how do you get these three different characters
130
323798
1926
05:25
within the family?
131
325724
2334
05:28
It's kind of fascinating to think that elephants
132
328058
2455
05:30
really are just like us.
133
330513
1753
05:32
And so I got curious about this
134
332266
1838
05:34
and I thought, "Well, what if you measure
135
334104
3501
05:37
the difference in character of a dominant female's calf
136
337605
4295
05:41
versus a lower-ranking female's calf,
137
341900
2519
05:44
and see what happens in their growing up."
138
344419
2945
05:47
And so we started doing this.
139
347364
2486
05:49
And you can see this little guy with his ears out,
140
349850
1600
05:51
really charging at you.
141
351450
1876
05:53
The difference between that character
142
353326
1795
05:55
and the character who holds back,
143
355121
2214
05:57
wants to touch mom,
144
357335
1833
05:59
isn't so certain about what's going on here.
145
359168
1667
06:00
But the other one's charging ahead all confident.
146
360835
2837
06:03
Well, we started measuring how far away
147
363672
2952
06:06
a calf will stray from mom,
148
366624
2499
06:09
how often do they touch others,
149
369123
1640
06:10
how often do they initiate play,
150
370763
1861
06:12
and then look at the dominance of the females, of their mothers.
151
372624
4018
06:16
And what we found is that socializing with the dominant calves
152
376642
4546
06:21
actually socialize more significantly more than the lower-ranking calves.
153
381188
3519
06:24
And what it looks like is
154
384707
2196
06:26
it's not that the lower-ranking calves don't want to play,
155
386903
2960
06:29
they're actually not allowed to interact
156
389863
1753
06:31
with the higher-ranking calves.
157
391616
1591
06:33
They get swatted away from the dominant females.
158
393207
2955
06:36
and so this is kind of the downside of,
159
396162
2002
06:38
okay we are very much like elephants,
160
398164
2001
06:40
elephants are as much like us,
161
400165
1963
06:42
but it's kind of for better or for worse
162
402128
2719
06:44
because I can also see this happening in humans
163
404847
2421
06:47
and maybe we should take a lesson from that.
164
407268
3026
06:50
One last thing that we found
165
410294
1502
06:51
is that the males will be the risk-takers,
166
411796
2562
06:54
they're more independent
167
414358
1376
06:55
and they're more likely to spend more time away from mom.
168
415734
2960
06:58
And that's very true in human societies
169
418694
2211
07:00
and with other social animals.
170
420905
2389
07:03
So I hope I've convinced you
171
423294
1573
07:04
that we have very similar lives to elephants
172
424867
2927
07:07
and that elephants have very individual, durable
173
427794
4205
07:11
characters that we've measured across years.
174
431999
2253
07:14
The bully always tends to be the bully
175
434252
1999
07:16
unless there's some kind of social upset,
176
436251
1923
07:18
and he decides he better be a softy
177
438174
2370
07:20
or else he's not going to gain favor at all.
178
440544
3134
07:23
And then you have the gentle giants
179
443678
1749
07:25
that are always going to be gentle.
180
445427
1838
07:27
The young males really need mentoring from the elders,
181
447265
2863
07:30
and those gentle giants are very good at doing that,
182
450128
3185
07:33
soliciting them.
183
453313
1916
07:35
Leaving family is a really hard things for the males,
184
455229
2922
07:38
but they survive and they figure out who to hang out with.
185
458151
4338
07:42
So, just to end here, I just wanted to say that
186
462489
2961
07:45
since they are so similar to us,
187
465450
2001
07:47
and have these characters,
188
467451
1259
07:48
I hope when you see them on TV
189
468710
1952
07:50
or you go out and you're lucky enough to see them in the wild,
190
470662
2422
07:53
that maybe you'll think of them
191
473084
1462
07:54
as individual characters deserving of our attention,
192
474546
3059
07:57
and also deserving of our protection. Thank you.
193
477605
3506
About this website

This site will introduce you to YouTube videos that are useful for learning English. You will see English lessons taught by top-notch teachers from around the world. Double-click on the English subtitles displayed on each video page to play the video from there. The subtitles scroll in sync with the video playback. If you have any comments or requests, please contact us using this contact form.

https://forms.gle/WvT1wiN1qDtmnspy7