The return of Mongolia's "wild" horses - Nigel Rothfels

216,026 views ・ 2023-04-25

TED-Ed


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

00:07
For thousands of years, native Takhi horses roamed the steppes of Central Asia.
0
7086
5089
00:12
But by the late 1960s, they’d become extinct in the wild—
1
12175
4045
00:16
the last herds struggling in meager habitats
2
16220
3128
00:19
against hunters and competition from local livestock.
3
19348
3254
00:22
Some small groups of Takhi survived in European zoos,
4
22935
3879
00:26
but their extinction still seemed inevitable.
5
26981
2419
00:29
To prevent this terrible fate,
6
29692
1668
00:31
a coalition of scientists and zoos pulled together
7
31360
3504
00:34
to start an international Takhi breeding program.
8
34864
3170
00:38
By the 1990s, these collaborators in Europe and the US
9
38367
3921
00:42
began releasing new generations of Asia’s ancient wild horse
10
42288
4004
00:46
back into their native habitat.
11
46292
1752
00:48
This Takhi revival was a world-famous conservation victory,
12
48294
3796
00:52
but the full story is much more complicated than it first appears.
13
52090
3795
00:56
And its twists and turns raise serious questions about the role of zoos
14
56135
4630
01:00
and what conservation even means.
15
60765
2294
01:03
To get the whole story, we need to start in the late 1800s
16
63226
3670
01:06
when Russian explorer Nikolay Przhevalsky was gifted
17
66896
3420
01:10
the remains of one of these wild horses.
18
70316
2586
01:13
Though the Takhi had long been known to local Mongolians,
19
73402
3379
01:16
European scientists were intrigued by the remains,
20
76781
3211
01:19
which looked more like those of a donkey or zebra than any known domestic horse.
21
79992
4922
01:25
They concluded the species was a sort of missing link
22
85331
3212
01:28
between wild asses and modern horses.
23
88543
2836
01:31
And as reports of the newly dubbed Przhevalsky’s horse
24
91546
3670
01:35
circulated through Europe and America,
25
95216
2336
01:37
zoo proprietors became eager to acquire the previously unknown species.
26
97552
4879
01:42
At this time, zoos were focused primarily on drawing visitors with exotic animals,
27
102682
5505
01:48
and their exhibitions were more concerned with entertainment than animal welfare.
28
108187
4171
01:52
But in the early 1900s, the near extinction of the American bison
29
112525
4421
01:56
and the total extinction of other species like the passenger pigeon
30
116946
4046
02:00
inspired zoos to rebrand as centers for conservation.
31
120992
3837
02:05
And as it became clear that Przhevalsky’s horse might be headed for a similar fate,
32
125037
4755
02:09
zoos began breeding programs to sustain the captive population.
33
129792
4463
02:14
However, the individuals behind these programs came to an interesting conclusion
34
134672
5756
02:20
about how the horses should be bred.
35
140428
2544
02:23
Like their colleagues, they believed the species represented a missing link
36
143055
4338
02:27
between modern domestic horses and their more primitive ancestors.
37
147393
4046
02:31
They also knew that some of the horses in their collections weren’t purebred Takhi,
38
151647
4755
02:36
and many didn’t even resemble the species’ standard description.
39
156485
3504
02:40
So breeders felt it was up to them to determine what a wild Takhi
40
160448
4337
02:44
should look like,
41
164785
1210
02:45
and breed them accordingly.
42
165995
1543
02:47
Basing their work on just a few specimens and broad beliefs
43
167830
3545
02:51
about what a primitive horse might look like,
44
171375
2419
02:53
they created a rigorous model for the ideal Takhi.
45
173794
3587
02:57
And over the 20th century,
46
177840
1668
02:59
breeders in western zoos and private collections
47
179508
2962
03:02
created a population of thousands of horses
48
182470
2961
03:05
all carefully bred to share the same physical characteristics.
49
185556
4213
03:11
Of course, in their native habitat,
50
191812
2128
03:13
wild Takhi had regularly interbred with domesticated horses for millennia,
51
193940
4879
03:18
producing a population with much more diverse appearances.
52
198819
3337
03:22
So when it was time to introduce the Takhi to their ancestral home,
53
202531
3713
03:26
they were quite different from the horses
54
206244
2252
03:28
who’d been taken from those steppes a century earlier.
55
208496
2919
03:31
Complicating things even further,
56
211582
1877
03:33
while these new Takhi herds were no longer in zoos,
57
213459
3420
03:36
to this day, almost all remain closely monitored
58
216879
3504
03:40
and controlled for their own protection.
59
220383
2377
03:43
So in a strange way, it’s hard to say if these animals are actually in the wild
60
223135
5005
03:48
or even if they’re truly Takhi.
61
228140
2253
03:51
The story of the Takhi horse is not unique.
62
231269
2544
03:54
In many of our conservation victories,
63
234063
2169
03:56
it’s difficult to say exactly what was saved,
64
236232
2961
03:59
and the role that zoos play in conservation can be very complicated.
65
239193
3962
04:03
It's clear that zoos have been and can continue to be significant forces
66
243322
4505
04:07
for animal preservation,
67
247827
1501
04:09
especially efforts to save charismatic animals from extinction.
68
249328
3587
04:13
But today, the most direct cause of animal extinctions
69
253040
3671
04:16
are humanity’s impacts on animal habitats and Earth’s climate.
70
256711
4129
04:21
So if zoos truly want to help protect the diversity of animal life on this planet,
71
261132
4754
04:26
perhaps they should redirect their efforts
72
266012
2210
04:28
to preserving the natural habitats these animals so desperately need.
73
268222
4379
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