The hidden worlds within natural history museums - Joshua Drew

自然博物館裏隱藏的世界 - 約書亞‧德魯

260,214 views

2014-12-02 ・ TED-Ed


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The hidden worlds within natural history museums - Joshua Drew

自然博物館裏隱藏的世界 - 約書亞‧德魯

260,214 views ・ 2014-12-02

TED-Ed


請雙擊下方英文字幕播放視頻。

譯者: Yingying Zhao 審譯者: Melody Tang
00:07
When you think of natural history museums,
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當你想到自然歷史博物館時
00:09
you probably picture exhibits filled with ancient lifeless things,
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你可能會想起各種古老 又毫無生命的陳列品
00:14
like dinosaurs
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比如,恐龍
00:15
meteroites,
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隕石
00:16
and gemstones.
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和寶石
00:17
But behind that educational exterior,
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在充滿教育意義的外表的背後
00:20
which only includes about 1% of a museum's collection,
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這些僅僅占博物館收藏品的1%
00:25
there are hidden laboratories where scientific breakthroughs are made.
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這裏隱藏著 進行許多科學技術突破的實驗室
00:29
Beyond the unmarked doors,
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在沒有標示的門後
00:31
and on the floors the elevators won't take you to,
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在搭乘電梯無法到達的樓層上
00:34
you'd find windows into amazing worlds.
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你會發現一個讓你 進入令人驚奇的世界的窗口
00:37
This maze of halls and laboratories is a scientific sanctuary
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這個由走廊和實驗室構建而成的 迷宮堪稱科研的聖殿
00:42
that houses a seemingly endless variety of specimens.
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因為它儲藏著無窮而多樣的標本
00:45
Here, researchers work to unravel mysteries of evolution,
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在這裡,科研人員致力於 解開進化論的謎團
00:49
cosmic origins,
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宇宙的起源
00:51
and the history of our planet.
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和地球的歷史
00:53
One museum alone may have millions of specimens.
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任何一座自然歷史博物館 都可能有數百萬的標本
00:57
The American Museum of Natural History in New York City
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座落於紐約市的 美國自然歷史博物館
01:00
has over 32,000,000 in its collection.
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收藏的標本就超過三千兩百萬件
01:04
Let's take a look at just one of them.
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讓我們看一看其中的一件
01:06
Scientists have logged exactly where and when it was found
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科學家們準確地記錄下 找到這件標本的時間和地點
01:09
and used various dating techniques to pinpoint when it originated.
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並採用各種年代測定技術, 精確判斷它發源於何時
01:14
Repeat that a million times over, and these plants,
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他們重複以上步驟一百萬次以上,這些植物們
01:17
animals,
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動物們,
01:18
minerals,
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礦物質,
01:19
fossils,
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化石,
01:20
and artifacts present windows into times and places around the world
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和手工藝品所呈現的是世界各地在不同時期的樣貌
01:25
and across billions of years of history.
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並且跨越數十億年的歷史
01:28
When a research problem emerges,
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當一個研究問題浮現時
01:29
scientists peer through these windows and test hypotheses about the past.
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科研家們透過這些標本 所呈現的畫面
並測試對過去的假設
01:34
For example, in the 1950s, populations of predatory birds,
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例如,在1950年代, 捕食鳥類
01:39
like peregrine falcons,
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例如,游隼,
01:41
owls,
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貓頭鷹,
01:42
and eagles started to mysteriously crash,
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和老鷹的數量開始 毫無緣由地驟減
01:45
to the point where a number of species, including the bald eagle,
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若干鳥類甚至瀕臨滅絕
01:48
were declared endangered.
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其中包括禿頭鷹
01:50
Fortunately, scientists in The Field Museum in Chicago
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萬幸的是,美國芝加哥 自然歷史博物馆的科學家們
01:54
had been collecting the eggs of these predatory birds for decades.
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幾十年來一直在收集這些 捕食鳥類所產的卵
01:58
They discovered that the egg shells used to be thicker
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他們發現蛋殼以前比較厚
02:01
and had started to thin around the time
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而從殺蟲劑DDT開始 被用於農作物上時
02:04
when an insecticide called DDT started being sprayed on crops.
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蛋殼開始變薄
02:09
DDT worked very well to kill insects,
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DDT殺蟲效果非常顯著
02:12
but when birds came and ate those heaps of dead bugs,
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但當鳥類吃了成堆的這些死蟲
02:16
the DDT accumulated in their bodies.
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DDT進而在鳥類體內堆積
02:19
It worked its way up the food chain
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DDT成為了食物鏈的一部分
02:21
and was absorbed by apex predator birds in such high concentrations
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位於食物鏈頂端的捕食鳥類吸收了高濃度的DDT
02:26
that it thinned their eggs
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以至於產下的蛋殼都變薄了
02:28
so that they couldn't support the nesting bird's weight.
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薄得無法承受巢鳥的重量
碎雞蛋遍地都是,
02:32
There were omelettes everywhere
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02:33
until scientists from The Field Museum in Chicago,
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直到美國芝加哥自然歷史博物馆的科學家們
02:36
and other institutions,
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和其他機構的專家
02:37
helped solve the mystery and save the day.
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一起解開了謎團, 挽救了局面
02:40
America thanks you, Field Museum.
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美國感謝您,自然歷史博物館
02:42
Natural history museums windows into the past
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自然歷史博物館給了我們 窺視歷史的窗口
02:45
have solved many other scientific mysteries.
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從而解決了許多其他科研的謎團
02:48
Museum scientists have used their collections
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博物館科學家們曾利用館藏
02:50
to sequence the Neanderthal genome,
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計算出穴居人的染色體序列
02:53
discover genes that gave mammoths red fur,
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發現了猛瑪象的紅毛基因
02:56
and even pinpoint where ancient giant sharks gave birth.
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甚至精確的定位 古老巨鯊的分娩的地方
03:01
There are about 900 natural history museums in the world,
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世界各地大約有900座 自然歷史博物館
03:04
and every year they make new discoveries and insights
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每一年,它們都會有新的發現和
有關於地球的過去,現在, 和未來的見解
03:07
into the Earth's past, present and future.
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03:10
Museum collections even help us understand how modern threats,
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博物館藏品甚至能幫助 我們理解現世的危機
03:14
such as global climate change,
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例如,全球氣候變化 正在影響著我們的世界
03:16
are impacting our world.
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03:17
For instance, naturalists have been collecting samples
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舉個例子,在過去的100年裏,
03:20
for over 100 years from Walden Pond,
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自然學家從瓦爾登湖採集樣本
03:24
famously immortalized by Henry David Thoreau.
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瓦爾登湖因為美國先驗論者 大衛‧梭羅而聞名於世
03:27
Thanks to those naturalists, who count Thoreau among their number,
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由於這些自然學家參考了 梭羅的紀錄
03:30
we know that the plants around Walden Pond
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我們才知道瓦爾登湖一帶的植物
03:32
are blooming over three weeks earlier than they did 150 years ago.
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比起150年前, 開花期提早了3個星期
03:38
Because these changes have taken place gradually,
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因為這些變化發生得很緩慢
03:40
one person may not have noticed them over the span of a few decades,
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人們在幾十年間可能無法 察覺這類變化
03:44
but thanks to museum collections,
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但是多虧了博物館的藏品
03:46
we have an uninterrupted record showing how our world is changing.
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我們才有連續的紀錄, 向我們展示世界不斷的變化
03:51
So the next time you're exploring a natural history museum,
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所以下一次當你探索一所 自然歷史博物館時
03:54
remember that what you're seeing is just one gem
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記住,你所看到的只是 巨大科研寶藏中的
03:57
of a colossal scientific treasure trove.
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一個寶石
04:00
Behind those walls and under your feet are windows into forgotten worlds.
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在那些牆的背後,在你的腳下, 是進入被人遺忘的世界的窗口
04:05
And who knows?
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誰知道呢
04:06
One day some future scientist may peer through one and see you.
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也許在未來某天,科學家們 會從其中的一個窗口看到你
(音樂)
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