The surprising secrets of hummingbird flight - Kristiina J. Hurme and Alejandro Rico-Guevara

1,018,111 views

2021-04-08 ใƒป TED-Ed


New videos

The surprising secrets of hummingbird flight - Kristiina J. Hurme and Alejandro Rico-Guevara

1,018,111 views ใƒป 2021-04-08

TED-Ed


์•„๋ž˜ ์˜๋ฌธ์ž๋ง‰์„ ๋”๋ธ”ํด๋ฆญํ•˜์‹œ๋ฉด ์˜์ƒ์ด ์žฌ์ƒ๋ฉ๋‹ˆ๋‹ค.

๋ฒˆ์—ญ: Cellina Song ๊ฒ€ํ† : Young You
00:06
And the clock starts...
0
6913
1500
์‹œ๊ณ„๊ฐ€ ์‹œ์ž‘๋ฉ๋‹ˆ๋‹ค.
00:08
now.
1
8954
1000
์ง€๊ธˆ.
00:11
Did you miss it?
2
11288
1000
๋†“์น˜์…จ๋‚˜์š”?
00:12
It wasnโ€™t some bug buzzing by or a weird trick of the light.
3
12621
3708
์œ™์œ™๊ฑฐ๋ฆฌ๋ฉฐ ์ง€๋‚˜๊ฐ€๋Š” ๋ฒŒ๋ ˆ๋‚˜ ์ด์ƒํ•œ ๋น›์˜ ์†์ž„์ˆ˜๊ฐ€ ์•„๋‹™๋‹ˆ๋‹ค.
00:16
You just saw a hummingbird perform astonishing aerial acrobatics,
4
16329
4584
๋‹น์‹ ์€ ๋ฐฉ๊ธˆ ๋ฒŒ์ƒˆ๊ฐ€ ๋†€๋ผ์šด ๊ณต์ค‘ ๊ณก์˜ˆ๋ฅผ ํ•˜๊ณ ,
00:20
eat lunch in midair, pollinate a flower, and then escape a threat upside downโ€”
5
20913
5875
๊ณต์ค‘์—์„œ ์ ์‹ฌ์„ ๋จน๊ณ , ๊ฝƒ์„ ์ˆ˜๋ถ„์‹œํ‚ค๊ณ ,
๊ฑฐ๊พธ๋กœ ๋œ ์ฑ„๋กœ ์œ„๊ธฐ๋ฅผ ๋ชจ๋ฉดํ•˜๋Š” ๊ฒƒ์„ ๋ณด์•˜์Šต๋‹ˆ๋‹ค.
00:26
all in a matter of seconds.
6
26788
2166
๋‹จ ๋ช‡ ์ดˆ ๋งŒ์—์š”.
00:29
So letโ€™s slow down the action, and unpack each step in this blazing-fast feast.
7
29663
5333
์ด์ œ ์•ก์…˜์˜ ์†๋„๋ฅผ ์ค„์—ฌ์„œ
์ด ๊ฒฉ๋ ฌํ•˜๊ฒŒ ๋น ๋ฅธ ์ถ•์ œ๋ฅผ ํ•œ ๋‹จ๊ณ„์”ฉ ๋ถ„์„ํ•ด๋ด…์‹œ๋‹ค.
00:36
First up, their incredibly rapid flight.
8
36287
2667
๋จผ์ €, ๋†€๋ผ์šธ ์ •๋„๋กœ ๋น ๋ฅธ ๋น„ํ–‰์ž…๋‹ˆ๋‹ค.
00:39
Hummingbirds typically beat their wings 30 to 40 times per second,
9
39371
4291
๋ฒŒ์ƒˆ๋Š” ๋ณดํ†ต 1์ดˆ๋‹น 30~40ํšŒ์”ฉ ๋‚ ๊ฐœ๋ฅผ ํ”๋“ญ๋‹ˆ๋‹ค.
00:43
creating the high-frequency hum theyโ€™re named for.
10
43704
3125
ํ—ˆ๋ฐ๋ฒ„๋“œ๋ผ๋Š” ์ด๋ฆ„์ด ๋ถ™์€ ์ด์œ ์ธ ๊ณ ์ฃผํŒŒ์˜ ์œ™์œ™๊ฑฐ๋ฆฌ๋Š” ์†Œ๋ฆฌ๋ฅผ ๋งŒ๋“ค๋ฉด์„œ์š”.
00:47
To flap their wings at this speed,
11
47121
2083
์ด ์†๋„๋กœ ๋‚ ๊ฐœ๋ฅผ ํŽ„๋Ÿญ์ด๊ธฐ ์œ„ํ•ด์„œ
00:49
hummingbirds have evolved giant pectoral muscles
12
49204
3208
๋ฒŒ์ƒˆ๋Š” ๊ฑฐ๋Œ€ํ•œ ๊ฐ€์Šด ๊ทผ์œก์„ ์ง„ํ™”์‹œ์ผœ
00:52
that comprise over a third of some speciesโ€™ bodyweight.
13
52412
3292
์–ด๋–ค ์ข…๋“ค์€ ๊ฐ€์Šด ๊ทผ์œก์ด ๋ชธ๋ฌด๊ฒŒ์˜ 1/3์„ ๋„˜๊ธฐ๋„ ํ•ฉ๋‹ˆ๋‹ค.
00:56
But the real secret to their fine-tuned flight is all in the wrist.
14
56162
5042
๊ทธ๋Ÿฌ๋‚˜ ๊ทธ๋“ค์˜ ๋ฏธ์„ธ์กฐ์ •๋œ ๋น„ํ–‰์˜ ๋น„๋ฐ€์€ ๋ชจ๋‘ ์†๋ชฉ์— ์žˆ์Šต๋‹ˆ๋‹ค.
01:01
Most birds only generate lift on the downstroke of each flap,
15
61496
3875
๋Œ€๋ถ€๋ถ„์˜ ์ƒˆ๋Š” ๊ฐ ๋‚ ๊ฐฏ์ง“์˜ ํ•˜๊ฐ• ์šด๋™์—์„œ๋งŒ ์–‘๋ ฅ์„ ๋งŒ๋“ค์–ด๋ƒ…๋‹ˆ๋‹ค.
01:05
while using the upward recovery stroke to set up their next wing beat.
16
65371
4458
์ƒ์Šน์šด๋™์€ ๋‹ค์Œ ๋‚ ๊ฐฏ์ง“์„ ์ฑ„๋น„ํ•˜๊ธฐ ์œ„ํ•ด ์ด์šฉํ•˜๋ฉด์„œ์š”.
01:10
Hummingbirds however, turn their wrists during the upstroke,
17
70121
4167
๊ทธ๋Ÿฌ๋‚˜ ๋ฒŒ์ƒˆ๋“ค์€ ์ƒ์Šน์šด๋™ ๋™์•ˆ ๋‚ ๊ฐฏ์ง“์„ ํ•˜๋Š” ๋‚ด๋‚ด
01:14
changing their wingโ€™s angle to flap in a figure 8 pattern
18
74288
3750
์ง€์†์ ์ธ ์–‘๋ ฅ์„ ๋งŒ๋“ค์–ด๋‚ด๋Š” 8์ž ํŒจํ„ด์„ ๊ทธ๋ฆฌ๋ฉฐ ํŽ„๋Ÿญ์ด๋„๋ก
01:18
that continually generates lift throughout their wingbeats.
19
78038
4083
๋‚ ๊ฐœ์˜ ๊ฐ๋„๋ฅผ ๋ฐ”๊พธ๋ฉด์„œ ์†๋ชฉ์„ ๋Œ๋ฆฝ๋‹ˆ๋‹ค.
01:22
Alongside their massive muscles, this special lift-producing technique
20
82121
4708
๊ทธ๋“ค์˜ ๊ฑฐ๋Œ€ํ•œ ๊ทผ์œก๊ณผ ํ•จ๊ป˜, ์–‘๋ ฅ์„ ๋งŒ๋“œ๋Š” ์ด ํŠน๋ณ„ํ•œ ๊ธฐ์ˆ ์€
01:26
allows hummingbirds to achieve sustained hovering flightโ€”
21
86829
3584
๋ฒŒ์ƒˆ๋“ค์ด ์–ด๋–ค ๋‹ค๋ฅธ ์ƒˆ๋„ ํ•  ์ˆ˜ ์—†๋Š” ๊ณต์ค‘ ๋ฌ˜๊ธฐ์ธ
01:30
an aerial feat no other bird can perform.
22
90413
2875
๊ณต์ค‘์ •์ง€ ๋น„ํ–‰์„ ์ง€์†ํ•˜๋Š” ๊ฑธ ํ—ˆ๋ฝํ•ฉ๋‹ˆ๋‹ค.
01:33
Hovering lets hummingbirds slow to a stop almost instantly
23
93454
4750
๊ณต์ค‘์ •์ง€๋Š” ๋ฒŒ์ƒˆ๋“ค์ด ๊ฑฐ์˜ ์ฆ‰์‹œ ์ •์ง€ํ•˜๊ณ 
01:38
and assess scenarios in midair.
24
98204
2209
๊ณต์ค‘์—์„œ ์•ž์œผ๋กœ ํ•  ์ผ์„ ๊ณ„ํšํ•˜๋Š” ๊ฑธ ํ—ˆ๋ฝํ•ฉ๋‹ˆ๋‹ค.
01:40
Then, they can take off in any direction,
25
100704
2292
์ดํ›„ ๊ทธ๋“ค์€ ์–ด๋–ค ๋ฐฉํ–ฅ์œผ๋กœ๋„ ์ถœ๋ฐœํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
01:42
reaching speeds faster than a fighter jet, relative to the birdโ€™s size.
26
102996
4208
์ƒˆ์˜ ํฌ๊ธฐ์™€ ๋น„๊ตํ–ˆ์„ ๋•Œ ์ „ํˆฌ๊ธฐ๋ณด๋‹ค ๋น ๋ฅธ ์†๋„์— ๋„๋‹ฌํ•˜๋ฉด์„œ์š”.
01:47
And since they can beat each of their wings at different speeds and angles,
27
107579
3959
์ด ์ƒˆ๋“ค์€ ๊ฐ๊ฐ์˜ ๋‚ ๊ฐœ๋ฅผ ๋‹ค๋ฅธ ์†๋„์™€ ๊ฐ๋„๋กœ ์ €์„ ์ˆ˜ ์žˆ๊ธฐ ๋•Œ๋ฌธ์—
01:51
the birds can perform incredible spins and turns
28
111538
3458
๋’ค๋กœ ๋‚ ๊ฑฐ๋‚˜ ์‹ฌ์ง€์–ด ๊ฑฐ๊พธ๋กœ ๋‚˜๋Š” ๋™์•ˆ์—๋„
01:54
all while flying backwards or even upside down.
29
114996
3542
๋ฏฟ์„ ์ˆ˜ ์—†๋Š” ํšŒ์ „๊ณผ ๋ฐฉํ–ฅ์ „ํ™˜์„ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
01:58
Of course, flying this way can be exhausting.
30
118954
2917
๋ฌผ๋ก , ์ด๋ ‡๊ฒŒ ๋‚˜๋Š” ๊ฒƒ์€ ํž˜๋“ค ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
02:01
Hovering is one of the most energy intensive forms of movement
31
121871
3167
๊ณต์ค‘์ •์ง€๋Š” ๋™๋ฌผ์˜ ์™•๊ตญ์—์„œ ์—๋„ˆ์ง€๋ฅผ ๊ฐ€์žฅ ๋งŽ์ด ์†Œ๋ชจํ•˜๋Š”
02:05
in the animal kingdom.
32
125038
1625
ํ˜•ํƒœ์˜ ์›€์ง์ž„ ์ค‘ ํ•˜๋‚˜์ž…๋‹ˆ๋‹ค.
02:06
And relative to their body size,
33
126663
1916
๊ทธ๋ฆฌ๊ณ  ๊ทธ๋“ค์˜ ๋ชธ ํฌ๊ธฐ์— ๋น„ํ•ด์„œ
02:08
hummingbirds have the highest metabolic rates of all vertebrates.
34
128579
4209
๋ฒŒ์ƒˆ๋“ค์€ ๋ชจ๋“  ์ฒ™์ถ”๋™๋ฌผ ์ค‘ ๊ฐ€์žฅ ๋†’์€ ์‹ ์ง„๋Œ€์‚ฌ์œจ์„ ๊ฐ€์กŒ์Šต๋‹ˆ๋‹ค.
02:12
This leads them to eat very frequentlyโ€”
35
132788
2041
์ด๊ฒƒ์€ ๊ทธ๋“ค์„ ๋งค์šฐ ์ž์ฃผ ๋จน๋„๋ก ๋งŒ๋“ญ๋‹ˆ๋‹ค.
02:14
often consuming an average of four meals an hour while flying.
36
134829
3792
์ข…์ข… ๋‚˜๋Š” ๋™์•ˆ ํ‰๊ท  1์‹œ๊ฐ„์— 4๋ฒˆ์”ฉ ์‹์‚ฌ๋ฅผ ํ•  ์ •๋„๋กœ์š”.
02:19
Fortunately, their hovering lets them eat at remarkable angles without perching,
37
139079
5000
์šด์ด ์ข‹๊ฒŒ๋„, ๊ณต์ค‘์ •์ง€๋Š” ์•‰์ง€ ์•Š๊ณ  ๋†€๋ž„ ๋งŒํ•œ ๊ฐ๋„๋กœ
์‹์‚ฌ๋ฅผ ํ•˜๊ฒŒ ํ•ด ์ค๋‹ˆ๋‹ค.
02:24
consuming food that would otherwise be impossible to reach.
38
144079
3792
๊ทธ๋ ‡์ง€ ์•Š์œผ๋ฉด ๋‹ฟ์„ ์ˆ˜ ์—†๋Š” ์Œ์‹์„ ๋จน์œผ๋ฉด์„œ์š”.
02:28
Using their long slender bills,
39
148371
2292
๊ทธ๋“ค์€ ๊ธธ๊ณ  ๊ฐ€๋Š” ๋ถ€๋ฆฌ๋ฅผ ์‚ฌ์šฉํ•ด์„œ
02:30
they reach deep inside flowers and pump out nectar
40
150663
3291
๊ฝƒ ์•ˆ์œผ๋กœ ๊นŠ๊ฒŒ ๋„๋‹ฌํ•˜๊ณ 
02:33
with their thin grooved tongues.
41
153954
2292
์–‡์€ ํ™ˆ์ด ์žˆ๋Š” ํ˜€๋กœ ๊ฟ€์„ ํผ ์˜ฌ๋ฆฝ๋‹ˆ๋‹ค.
02:36
This sugary liquid is a hummingbirdโ€™s most important energy source,
42
156246
4208
์ด ์„คํƒ• ๊ฐ™์€ ์•ก์ฒด๋Š” ๋ฒŒ์ƒˆ์˜ ๊ฐ€์žฅ ์ค‘์š”ํ•œ ์—๋„ˆ์ง€์›์ด๊ณ 
02:40
and a single bird consumes six times its weight in nectar every day
43
160579
4500
ํ•œ ๋งˆ๋ฆฌ๋Š” ์กฐ๊ธˆ์”ฉ ์ˆ˜๋ฐฑ ๋ฒˆ์˜ ์‹์‚ฌ๋ฅผ ํ•˜๋ฉฐ
02:45
over hundreds of small meals.
44
165079
2042
๋งค์ผ ๋ชธ๋ฌด๊ฒŒ 6๋ฐฐ๊ฐ€๋Ÿ‰์˜ ๊ฟ€์„ ์†Œ๋น„ํ•ฉ๋‹ˆ๋‹ค.
02:47
Each of these sugary snacks also pollinates the flower being visited
45
167579
4459
์ด ๊ฐ๊ฐ์˜ ์„คํƒ• ๊ณผ์ž๋Š” ์ด์ „์˜ ์‹์‚ฌ์—์„œ
02:52
with pollen left on the bird from previous meals.
46
172038
3166
๊ทธ ์ƒˆ์—๊ฒŒ ๋–จ์–ด์ง„ ๊ฝƒ๊ฐ€๋ฃจ๋กœ ๋ฐฉ๋ฌธํ•œ ๊ฝƒ์„ ์ˆ˜๋ถ„์‹œํ‚ต๋‹ˆ๋‹ค.
02:55
That's just a rough idea of what hummingbirds can do in several seconds.
47
175329
4584
๋ช‡ ์ดˆ ๋งŒ์— ๋ฒŒ์ƒˆ๊ฐ€ ํ•  ์ˆ˜ ์žˆ๋Š” ๊ฒƒ์— ๋Œ€ํ•œ ๋Œ€๋žต์ ์ธ ๋ฌ˜์‚ฌ์ž…๋‹ˆ๋‹ค.
03:00
But if we hang around a little longer,
48
180163
2416
๊ทธ๋Ÿฌ๋‚˜ ๋งŒ์•ฝ ์šฐ๋ฆฌ๊ฐ€ ์กฐ๊ธˆ ๋” ์˜ค๋ž˜ ๋จธ๋ฌด๋ฅธ๋‹ค๋ฉด
03:02
we might see their aerial acrobatics put to a more dangerous test.
49
182579
4917
์šฐ๋ฆฌ๋Š” ๊ทธ๋“ค์˜ ๊ณต์ค‘ ๊ณก์˜ˆ๊ธฐ์ˆ ์ด
๋” ์œ„ํ—˜ํ•œ ์‹œํ—˜์— ์ฒ˜ํ•˜๋Š” ๊ฒƒ์„ ๋ณผ์ง€๋„ ๋ชจ๋ฆ…๋‹ˆ๋‹ค
03:07
Hummingbirds keep track of which flowers they've recently drained,
50
187496
3708
๋ฒŒ์ƒˆ๋“ค์€ ๊ทธ๋“ค์ด ์ตœ๊ทผ์— ์–ด๋–ค ๊ฝƒ๋“ค์„ ๋น„์› ๋Š”์ง€ ์ถ”์ ํ•ฉ๋‹ˆ๋‹ค,
03:11
as well as those they plan to drain next.
51
191204
2667
๊ทธ๋“ค์ด ๋‹ค์Œ์— ๋น„์šธ ๊ฝƒ๋“ค๋„์š”.
03:13
And each bird will fight ruthlessly to defend this floral territory
52
193871
4625
๊ทธ๋ฆฌ๊ณ  ์ƒˆ ๊ฐ๊ฐ์€ ๊ทธ๋“ค์˜ ์œ ์ผํ•œ ์ง„์งœ ๊ฒฝ์Ÿ์ž์ธ ๋‹ค๋ฅธ ๋ฒŒ์ƒˆ๋“ค๋กœ๋ถ€ํ„ฐ
03:18
from their only real competition: other hummingbirds.
53
198496
4000
์ด ๊ฝƒ์˜ ์˜์—ญ์„ ๋ฐฉ์–ดํ•˜๊ธฐ ์œ„ํ•ด ๋ฌด์ž๋น„ํ•˜๊ฒŒ ๋‚  ๊ฒƒ์ž…๋‹ˆ๋‹ค.
03:22
Using their spear-like bills and blindingly fast flight,
54
202829
3709
๊ฒฐํˆฌ๋ฅผ ํ•˜๋Š” ๋ฒŒ์ƒˆ๋“ค์€ ์ฐฝ ๊ฐ™์€ ๋ถ€๋ฆฌ์™€ ๋น ๋ฅธ ๋น„ํ–‰์„ ์ด์šฉํ•ด
03:26
dueling hummingbirds chase each other through the air,
55
206538
3083
๊ณต๊ฒฉ์ ์œผ๋กœ ์ฐŒ๋ฅด๊ณ  ๊นƒํ„ธ์„ ๋ฝ‘์œผ๋ฉด์„œ
03:29
aggressively stabbing and plucking feathers.
56
209621
2458
๋Œ€๊ธฐ ์ค‘์—์„œ ์„œ๋กœ๋ฅผ ์ซ“์Šต๋‹ˆ๋‹ค.
03:32
The bills of some species are specialized for fighting,
57
212538
3500
์–ด๋–ค ์ข…์˜ ๋ถ€๋ฆฌ๋Š” ๊ฐ€์‹œ๊ฐ€ ์žˆ๋Š” ๋, ๊ณ ๋ฆฌ ๋˜๋Š” ์‹ฌ์ง€์–ด ํ†ฑ๋‹ˆ ๊ฐ™์€ ๋ชจ์–‘์œผ๋กœ
03:36
with spiny tips, hooks, or even saw-like serrations.
58
216038
4583
์‹ธ์›€์— ํŠนํ™”๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค.
03:40
Some hummingbirds employ these aerial fencing techniques
59
220621
3167
์–ด๋–ค ๋ฒŒ์ƒˆ๋“ค์€ ๋งค์™€ ์˜ฌ๋นผ๋ฏธ ๊ฐ™์€ ํฐ ์ƒˆ๋“ค์„ ์ซ“์•„๋‚ด๊ธฐ ์œ„ํ•ด
03:43
to chase off larger birds like hawks and owls.
60
223788
3416
์ด๋Ÿฐ ๊ณต์ค‘ ํŽœ์‹ฑ ๊ธฐ์ˆ ๋“ค์„ ์ด์šฉํ•ฉ๋‹ˆ๋‹ค.
03:47
But the most extreme fights are between male hummingbirds
61
227204
3542
๊ทธ๋Ÿฌ๋‚˜ ๊ฐ€์žฅ ๊ทน๋‹จ์ ์ธ ๋‹คํˆผ์€ ๊ฝƒ๊ณผ ์•”์ปท์„ ์œ„ํ•ด ๊ฒฝ์Ÿํ•˜๋Š”
03:50
competing for flowers and females.
62
230746
2542
์ˆ˜์ปท ๋ฒŒ์ƒˆ๋“ค ์‚ฌ์ด์—์„œ ์ผ์–ด๋‚ฉ๋‹ˆ๋‹ค.
03:53
Fortunately, these duels are rarely deadly.
63
233913
3083
์šด์ด ์ข‹๊ฒŒ๋„, ์ด ๊ฒฐํˆฌ๋“ค์ด ์ƒ๋ช…์„ ์•—์•„๊ฐ€๋Š” ๊ฒฝ์šฐ๋Š” ๋“œ๋ญ…๋‹ˆ๋‹ค.
03:56
After 15 to 20 seconds, one bird will typically surrenderโ€”
64
236996
3750
15์ดˆ์—์„œ 20์ดˆ ํ›„์— ๋ณดํ†ต ํ•œ ๋งˆ๋ฆฌ๊ฐ€ ํ•ญ๋ณตํ•˜๊ณ 
04:00
flying off to seek its breakfast elsewhere.
65
240788
2666
๋‹ค๋ฅธ ๊ณณ์—์„œ ์•„์นจ์„ ์ฐพ๊ธฐ ์œ„ํ•ด ๋‚ ์•„๊ฐˆ ๊ฒ๋‹ˆ๋‹ค.
04:04
After all this fighting, feeding, and flying,
66
244288
2875
์ด ๋ชจ๋“  ์‹ธ์›€๊ณผ ๋จน์ด ํ™•๋ณด์™€ ๋น„ํ–‰ ๋์—
04:07
hummingbirds sometimes need to sleep off the dayโ€™s events
67
247163
3125
๋ฒŒ์ƒˆ๋“ค์€ ๋•Œ๋•Œ๋กœ ๋ฌด๊ธฐ๋ ฅ์ด๋ผ๊ณ  ๋ถˆ๋ฆฌ๋Š” ๊ฒจ์šธ์ž ์˜ ๊ฐ€๋ฒผ์šด ํ˜•ํƒœ๋กœ
04:10
in a mild form of hibernation called torpor.
68
250288
3250
๋‚ฎ์˜ ์ผ๋“ค์„ ์ž ์„ ์ž์„œ ๋–จ์ณ๋ฒ„๋ ค์•ผ ํ•ฉ๋‹ˆ๋‹ค.
04:14
Their heartsโ€” proportionally the largest in the animal kingdomโ€”
69
254371
3917
๋™๋ฌผ์˜ ์™•๊ตญ์—์„œ ๋น„์œจ์ ์œผ๋กœ ๊ฐ€์žฅ ํฐ ๊ทธ๋“ค์˜ ์‹ฌ์žฅ์€
04:18
slow from 1,200 beats per minute to a mere 50.
70
258288
3958
1๋ถ„๋‹น 1200ํšŒ์˜ ๋ฐ•๋™์—์„œ 50์œผ๋กœ ํฌ๊ฒŒ ๋Š๋ ค์ง‘๋‹ˆ๋‹ค.
04:22
But when they wake up 4 to 7 hours later,
71
262704
2459
๊ทธ๋Ÿฌ๋‚˜ ๊ทธ๋“ค์ด 4~7์‹œ๊ฐ„ ํ›„ ์ผ์–ด๋‚  ๋•Œ
04:25
their lightning-fast metabolism kicks back into gear.
72
265163
3458
๊ทธ๋“ค์˜ ๋ฒˆ๊ฐœ๊ฐ™์ด ๋น ๋ฅธ ์‹ ์ง„๋Œ€์‚ฌ๋Š” ๋‹ค์‹œ ์—ด์‹ฌํžˆ ๋‹ฌ๋ฆฝ๋‹ˆ๋‹ค.
04:29
With all this speed and strength,
73
269413
2583
์ด ๋ชจ๋“  ์†๋„์™€ ํž˜์„ ๊ณ ๋ คํ–ˆ์„ ๋•Œ
04:31
itโ€™s no wonder the Aztecs revered these energetic birds
74
271996
3625
์•„์ฆˆํ… ์‚ฌ๋žŒ๋“ค์ด ์ด ํ™œ๊ธฐ์ฐฌ ์ƒˆ๋“ค์„
04:35
as agents of the god of war Huitzilopotchliโ€”
75
275621
3375
์ „์Ÿ์˜ ์‹  ์šฐ์ด์น ๋กœํฌ์น˜ํ‹€๋ฆฌ์˜ ์‚ฌ์ž๋กœ ์ˆญ๋ฐฐํ–ˆ๋˜ ๊ฒƒ์€ ๋†€๋ž์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
04:38
a reminder that immense power can come in the smallest packages.
76
278996
4667
๊ฑฐ๋Œ€ํ•œ ํž˜์€ ๊ฐ€์žฅ ์ž‘์€ ๊ฒƒ๋“ค๋กœ๋ถ€ํ„ฐ ๋‚˜์˜จ๋‹ค๋Š” ์‚ฌ์‹ค์„ ์ƒ๊ธฐ์‹œํ‚ค์ฃ .
์ด ์›น์‚ฌ์ดํŠธ ์ •๋ณด

์ด ์‚ฌ์ดํŠธ๋Š” ์˜์–ด ํ•™์Šต์— ์œ ์šฉํ•œ YouTube ๋™์˜์ƒ์„ ์†Œ๊ฐœํ•ฉ๋‹ˆ๋‹ค. ์ „ ์„ธ๊ณ„ ์ตœ๊ณ ์˜ ์„ ์ƒ๋‹˜๋“ค์ด ๊ฐ€๋ฅด์น˜๋Š” ์˜์–ด ์ˆ˜์—…์„ ๋ณด๊ฒŒ ๋  ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๊ฐ ๋™์˜์ƒ ํŽ˜์ด์ง€์— ํ‘œ์‹œ๋˜๋Š” ์˜์–ด ์ž๋ง‰์„ ๋”๋ธ” ํด๋ฆญํ•˜๋ฉด ๊ทธ๊ณณ์—์„œ ๋™์˜์ƒ์ด ์žฌ์ƒ๋ฉ๋‹ˆ๋‹ค. ๋น„๋””์˜ค ์žฌ์ƒ์— ๋งž์ถฐ ์ž๋ง‰์ด ์Šคํฌ๋กค๋ฉ๋‹ˆ๋‹ค. ์˜๊ฒฌ์ด๋‚˜ ์š”์ฒญ์ด ์žˆ๋Š” ๊ฒฝ์šฐ ์ด ๋ฌธ์˜ ์–‘์‹์„ ์‚ฌ์šฉํ•˜์—ฌ ๋ฌธ์˜ํ•˜์‹ญ์‹œ์˜ค.

https://forms.gle/WvT1wiN1qDtmnspy7