The first 21 days of a bee’s life | Anand Varma

942,763 views ・ 2015-05-11

TED


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

00:13
(Music)
0
13206
5919
00:26
These bees are in my backyard in Berkeley, California.
1
26325
4497
00:30
Until last year, I'd never kept bees before,
2
30822
2399
00:33
but National Geographic asked me to photograph a story about them,
3
33221
4049
00:37
and I decided, to be able to take compelling images,
4
37270
2499
00:39
I should start keeping bees myself.
5
39769
2484
00:42
And as you may know,
6
42253
1695
00:43
bees pollinate one third of our food crops,
7
43948
2624
00:46
and lately they've been having a really hard time.
8
46572
3158
00:49
So as a photographer, I wanted to explore what this problem really looks like.
9
49730
4551
00:54
So I'm going to show you what I found over the last year.
10
54281
3185
00:58
This furry little creature
11
58276
1624
00:59
is a fresh young bee halfway emerged from its brood cell,
12
59900
4343
01:04
and bees right now are dealing with several different problems,
13
64243
3040
01:07
including pesticides, diseases, and habitat loss,
14
67283
4252
01:11
but the single greatest threat is a parasitic mite from Asia,
15
71535
4611
01:16
Varroa destructor.
16
76146
2329
01:18
And this pinhead-sized mite crawls onto young bees
17
78475
2879
01:21
and sucks their blood.
18
81354
2345
01:23
This eventually destroys a hive
19
83699
1997
01:25
because it weakens the immune system of the bees,
20
85696
3244
01:28
and it makes them more vulnerable to stress and disease.
21
88940
3536
01:33
Now, bees are the most sensitive
22
93776
1997
01:35
when they're developing inside their brood cells,
23
95773
2740
01:38
and I wanted to know what that process really looks like,
24
98513
3111
01:41
so I teamed up with a bee lab at U.C. Davis
25
101624
2624
01:44
and figured out how to raise bees in front of a camera.
26
104248
3095
01:47
I'm going to show you the first 21 days of a bee's life
27
107993
2988
01:50
condensed into 60 seconds.
28
110981
2789
01:55
This is a bee egg as it hatches into a larva,
29
115763
4804
02:00
and those newly hatched larvae swim around their cells
30
120567
4445
02:05
feeding on this white goo that nurse bees secrete for them.
31
125012
4323
02:11
Then, their head and their legs slowly differentiate
32
131616
4543
02:16
as they transform into pupae.
33
136159
3350
02:21
Here's that same pupation process,
34
141833
2020
02:23
and you can actually see the mites running around in the cells.
35
143853
3390
02:27
Then the tissue in their body reorganizes
36
147243
4267
02:31
and the pigment slowly develops in their eyes.
37
151510
4605
02:38
The last step of the process is their skin shrivels up
38
158869
5888
02:44
and they sprout hair.
39
164757
2488
02:47
(Music)
40
167245
3992
03:00
So -- (Applause)
41
180805
2854
03:06
As you can see halfway through that video,
42
186703
3204
03:09
the mites were running around on the baby bees,
43
189907
2554
03:12
and the way that beekeepers typically manage these mites
44
192461
3929
03:16
is they treat their hives with chemicals.
45
196390
3014
03:19
In the long run, that's bad news,
46
199404
2266
03:21
so researchers are working on finding alternatives
47
201670
3553
03:25
to control these mites.
48
205223
2164
03:28
This is one of those alternatives.
49
208195
2768
03:30
It's an experimental breeding program at the USDA Bee Lab in Baton Rouge,
50
210963
4365
03:35
and this queen and her attendant bees are part of that program.
51
215328
3717
03:39
Now, the researchers figured out
52
219735
3695
03:43
that some of the bees have a natural ability to fight mites,
53
223430
3722
03:47
so they set out to breed a line of mite-resistant bees.
54
227152
4170
03:52
This is what it takes to breed bees in a lab.
55
232782
2636
03:55
The virgin queen is sedated
56
235418
2740
03:58
and then artificially inseminated using this precision instrument.
57
238158
5042
04:03
Now, this procedure allows the researchers
58
243200
2278
04:05
to control exactly which bees are being crossed,
59
245478
5022
04:10
but there's a tradeoff in having this much control.
60
250500
3127
04:13
They succeeded in breeding mite-resistant bees,
61
253627
3205
04:16
but in that process, those bees started to lose traits
62
256832
3088
04:19
like their gentleness and their ability to store honey,
63
259920
3765
04:23
so to overcome that problem,
64
263685
2509
04:26
these researchers are now collaborating with commercial beekeepers.
65
266194
3548
04:30
This is Bret Adee opening one of his 72,000 beehives.
66
270252
4868
04:35
He and his brother run the largest beekeeping operation in the world,
67
275120
4630
04:39
and the USDA is integrating their mite-resistant bees into his operation
68
279750
5659
04:45
with the hope that over time,
69
285409
1643
04:47
they'll be able to select the bees that are not only mite-resistant
70
287052
3671
04:50
but also retain all of these qualities that make them useful to us.
71
290723
4984
04:56
And to say it like that
72
296165
1695
04:57
makes it sound like we're manipulating and exploiting bees,
73
297860
3297
05:01
and the truth is, we've been doing that for thousands of years.
74
301157
3436
05:04
We took this wild creature and put it inside of a box,
75
304593
5154
05:09
practically domesticating it,
76
309747
2114
05:11
and originally that was so that we could harvest their honey,
77
311861
4109
05:15
but over time we started losing our native pollinators,
78
315970
2755
05:18
our wild pollinators,
79
318725
1695
05:20
and there are many places now where those wild pollinators
80
320420
3065
05:23
can no longer meet the pollination demands of our agriculture,
81
323485
3799
05:27
so these managed bees have become an integral part of our food system.
82
327284
5224
05:32
So when people talk about saving bees,
83
332508
2719
05:35
my interpretation of that
84
335227
2133
05:37
is we need to save our relationship to bees,
85
337360
3228
05:40
and in order to design new solutions,
86
340588
5004
05:45
we have to understand the basic biology of bees
87
345592
5101
05:50
and understand the effects of stressors that we sometimes cannot see.
88
350693
6243
05:57
In other words, we have to understand bees up close.
89
357909
3205
06:01
Thank you.
90
361114
2270
06:03
(Applause)
91
363384
1814
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