二万年前， Twenty thousandyears ago,
世界处于冰河时代。 the world was in the grip of an ice age.
北半球大部分被雪覆盖 Much of the northern hemisphere was blanketed by snow
和破碎的冰川，数英里厚。 and crushing glaciers, miles thick.
冰冷的土地。 An iced earth.
大兽， Great beasts,
有些熟悉而且有些奇怪，住在这里。 some familiar and some strange, lived here.
适应严寒。 Adapted for the punishing cold.
这是猛犸象的世界。 This was the world of the mammoths.
泰坦之王。 Kingdom of the titans.
冰的时代。 An age of ice.
这些骨头属于巨人， These bones belonged to giants,
但与恐龙不同，这些动物， but unlike dinosaurs, these animals,
与人类共享这个星球。 shared the planet with humans.
我们只能想象他们的奇怪叫声， We can only imagine their strange calls
这曾经困扰着我们祖先的梦想。 that once haunted the dreams of our ancestors.
曾经在我们中间走过的这些伟大的野兽怎么了？ What happened to these great beasts that once walked among us?
为什么灭绝他们的命运？ Why was extinction their fate?
他们生活的故事继续展开， The stories of their lives continue to unfold,
因为发现了奇怪的新生物。 as strange new creatures are uncovered.
2007年，俄罗斯北部的一名驯鹿牧民 In 2007, a reindeer herder in northern Russia
发现这个木乃伊化的婴儿猛犸象。 discovered this mummified baby woolly mammoth.
她被埋葬和冻结了42000年。 She had been buried and frozen for 42,000 years.
她的皮肤和器官，一些皮毛，甚至她的眼睛保存得非常完好。 Her skin and organs, some fur and even her eyes are extremely well-preserved.
她的小牙齿，尚未可见。 Her tiny tusks, not yet visible.
名为lyuba， Named lyuba,
她是有史以来发现的最完整的猛犸象。 she is the most intact mammoth ever found.
这是我们冰封过去的罕见窗口。 And a rare window to our frozen past.
二百五十万年前，冰河时代以雪花开始。 Two and a half million years ago, an ice age began with a snowflake.
自然界最美丽的作品之一。 One of nature's most beautiful creations.
他们一个接一个地倒下，数十亿。 One by one they fell, billions upon billions.
覆盖北方， Blanketing the north,
寒冷的星球。 chilling the planet.
更新世时代，我们最近的冰河时代，诞生了。 The pleistocene epoch, our most recent ice age, was born.
我们的故事开始于上一个冰河时代的末期， Our story begins near the end of the last ice age,
大约2万年前。 roughly 20,000 years ago.
这是一个非常适合巨人的环境。 It was an environment well suited to giants.
毛茸茸的猛犸象。 Woolly mammoths.
这个更新世的图标遍布欧洲，西伯利亚， This icon of the pleistocene spread through Europe, Siberia,
并进入北美北部， and into northern parts of north America,
漫游草原称为猛犸草原。 roaming grasslands called the mammoth steppe.
牧群很可能一直在移动， It is likely the herds were constantly on the move,
寻找他们喜欢的植被。 seeking their favorite vegetation.
个人每天最多吃400磅。 Individuals eating up to 400 pounds per day.
与她的大象表兄弟相似 Similar to her elephant cousins,
婴儿lyuba将住在一个约10名成员的家庭中， baby lyuba would have lived in a family clan of about 10 members,
由女性主导的女性保护。 protected by a dominant female, the matriarch.
站立高达10英尺，重达8吨， Standing up to 10 feet and weighing as much as eight tons,
羊毛的巨大质量帮助他们保持身体热量。 woolly's huge mass helped them to retain body heat.
三层头发和羊毛，一层绝缘脂肪， Three layers of hair and wool, a layer of insulating fat,
小毛皮衬里的耳朵也帮助他们应对寒冷。 and small fur-lined ears also helped them cope with the cold.
巨大的弯曲长牙，长达16英尺， Massive curved tusks, up to 16 feet long,
可以用作犁来到达埋在雪下的草地。 could be used as plows to reach grass buried under the snow.
小牛很好奇和好玩，但很容易受到捕食者的影响， The calves were curious and playful, but vulnerable to predators,
并始终在他们母亲的监视下。 and always under the watchful eye of their mother.
有时雄性公牛会挑战另一只雄鹿的优势。 Sometimes a male bull would challenge another for dominance of the herd.
这些巨头的冲突可能是一场暴力事件。 A clash of these titans could be a violent affair.
自地球诞生以来，气候一直在变化， Since the birth of our planet, the climate has been changing,
不断循环，温度上升和下降。 cycling, temperatures rising and falling.
至少有五个主要的冰河时代。 There have been at least five major ice ages.
有时可能用冰覆盖了整个星球。 Some may have covered the whole planet in ice.
气候周期从根本上受到变化的影响 Climate cycles have been fundamentally shaped by variations
随着时间的推移在地球的轨道上。 in the earth's orbit over time.
这些变化改变了太阳照射地球的方式， These variations alter the way the sun strikes the earth,
并可导致表面冷却。 and can lead to cooling on the surface.
随着冰帽的成长， As the ice caps grow,
它们充当镜子，反射出更多的阳光，远离闪亮的冰， they act as a mirror, reflecting more sunlight away from the shining ice,
导致热量从大气中逸出。 causing heat to escape from the atmosphere.
因此冷却加速，然后更多的冰， So cooling speeds up, then more ice,
更多的反射和更多的冷却。 more reflection and more cooling.
大气中的温室气体，如甲烷和二氧化碳 Greenhouse gases in the atmosphere such as methane and carbon dioxide
抵消冷却，像温室一样捕获太阳的热量 counterbalance the cooling, trapping the sun's heat like a greenhouse
围绕着星球。 around the planet.
火山可以自然地产生这些气体。 Volcanoes can produce these gases naturally.
植物和树木回收气体并控制它们。 Plants and trees recycle the gases and keep them in check.
温室气体太多，地球可以变暖。 Too much greenhouse gas, and the planet can warm.
太少了，它会变冷。 Too little, and it cools.
这些因素中的每一个，地球的轨道， Each of these factors, the earth's orbit,
与太阳和大气的角度， angle to the sun and atmosphere,
所有人共同努力塑造地球气候。 all work together to shape earth's climate.
这是大自然的发条。 This is the clockwork of nature.
即使是最小的变化也会使规模变小 Even the tiniest variation can tip the scale
带来深刻的后果。 with profound consequences.
在我们最近的冰河时代， During our most recent ice age,
冰川覆盖了北方。 glaciers blanketed the north.
但大多数野生动物都生活在冰盖以南 But most wildlife lived south of the ice sheets
在广阔的草原上。 on vast grassy plains.
草原支持着无数的食草动物群。 The grasslands supported immense herds of grazers.
像今天一样，有季节， Like today, there were seasons,
但它们的温度都在16华氏度左右， but each was about 16 degrees fahrenheit cooler,
如此多的水被锁在冰中， and with so much water locked up in ice,
平原上的降雪量减少了。 there was less snowfall on the plains.
我们今天知道的动物， Animals we know today,
生活在猛犸象，乳齿象和大型猫科动物之间。 lived among mammoths, mastodons and big cats.
冰河平原欧洲，亚洲和北美洲 The plains of ice age Europe, Asia and north America
就像非洲塞伦盖蒂一样。 were like the African serengeti.
像塞伦盖蒂一样 And like the serengeti,
哪里有食草者， where there are grass eaters,
哪里就有肉食者。 there are meat eaters.
恐狼。 Dire wolves.
这些聪明的社交食肉动物生活和猎杀。 These intelligent, social carnivores, lived and hunted in packs.
高达150磅， At up to 150 pounds,
它们比今天的灰狼更有力。 they were more powerfully built than today's gray wolves.
他们是积极的猎人。 And they were aggressive hunters.
狼并不孤单。 The wolves are not alone.
剑齿猫闻到新鲜的杀戮， Sabre-toothed cats smell the fresh kill,
和机会。 and an opportunity.
大弯曲的尖牙，几乎是现代非洲狮的两倍， With large curved fangs and nearly twice the weight of a modern African lion,
他们是最重要的捕食者。 they are the top predator.
在更新世时代， During the pleistocene epoch,
地球的大部分水被冰冻成冰盖， so much of the earth's water was frozen into the ice caps,
海平面下降超过300英尺，连接大陆。 that sea level dropped by over 300 feet, connecting continents.
许多冰河时代的动物从西伯利亚抵达北美， Many ice age animals arrived in north America from Siberia,
在这座陆桥上，叫做beringia。 over this land bridge, called beringia.
但他们不是唯一发现这段通道的人。 But they were not the only ones to discover the passage.
人类走向这个广袤无边的大陆。 Humans made their way to this vast, untamed continent.
虽然没有适合恶劣和恶劣气候的物理装备， Though not physically equipped for a harsh and bitter climate,
我们的智慧，好奇心和语言 our intelligence, curiosity and language
让我们应对新的挑战。 allowed us to cope with new challenges.
冰河时代的人类是第一个留下生命象征记录的人。 Ice age humans were the first to leave symbolic records of their lives.
他们的图画，主要在欧洲洞穴中找到， Their drawings, mostly found in European caves,
唤起一个火与冰的世界， evoke a world of fire and ice,
猛犸象， of mammoths,
野牛 bison
和马。 and horses.
随着冰河世纪巨人的消失， As the ice age giants disappeared,
他们留下的骨头助长了疯狂和令人不寒而栗的猜测。 the bones they left behind fueled wild and chilling speculation.
西伯利亚人想象着笨重的冰块从翘起的骷髅中升起 Siberians imagined that hulking skeletons rising from melting ice
必须属于生活在地狱中的巨型鼹鼠。 must belong to giant moles that lived in hell.
猛犸象的头骨可能是独眼巨人的灵感来源 A mammoth's skull may have been the inspiration for the cyclops
（希腊神话中的）。 of Greek mythology.
甚至科学家早期尝试组装猛犸象骨头 Even early attempts by scientists to assemble mammoth bones
经常和野生一样。 were often just as wild.
科学家们同样被巨大的独立巨石所困扰。 Scientists were equally confounded by massive boulders standing alone.
经过几个世纪的推测， After centuries of speculation,
地质学家确定这些巨石，称为“漂砾” geologists determined that the boulders, called "erratics,"
已经在冰河上运行了数千英里， had been carried thousands of miles on rivers of ice,
是当冰融化时留下的。 and left behind when the ice melted.
而神话中的神秘骨骼 And the mysterious bones from mythology
属于那个失落世界的非凡动物。 belonged to extraordinary animals from that lost world.
一个不寻常的地方 One unusual place,
藏在冰河时代的灌木丛中， hidden within the ice age scrub lands,
讲述了一个特殊而又严峻的故事。 tells an exceptional, though grim, story.
焦油坑。 Tar pits.
被饮用水诱惑的哥伦比亚猛犸象已经死亡， A columbian mammoth, lured by drinking water, has perished,
可能是脱水和接触 likely from dehydration and exposure
被困在焦油之后。 after getting trapped in the tar.
它的胴体引起这只剑齿猫的很大兴趣。 Its carcass is of interest to this sabre-toothed cat.
她饿了。 She's hungry.
猛犸象是值得冒险的诱惑。 A mammoth is a temptation worth the risk.
在这一天，焦油又夺走了另一名受害者。 On this day, the tar has claimed another victim.
而死亡的气味吸引了其他人。 And the smell of death attracts others.
四万年来，无数的掠食者和猎物 For forty thousand years, countless predators and prey
陷入了这个死亡陷阱。 were mired in this deathtrap.
他们的骨头沉入柏油沥青中并保存下来。 Their bones sinking into and preserved by the tarry asphalt.
今天继续从la brea焦油坑中拔出的骨头， Bones that continue to be pulled from the la brea tar pits today,
在洛杉矶市中心。 in the heart of downtown Los Angeles.
现在墙壁围绕着焦油坑，以便可以安全地挖掘骨头。 Walls now surround the tar pits to allow the bones to be safely excavated.
当沥青深入地下时，这些粘性沉积物自然形成， These sticky deposits were naturally formed when asphalt, deep in the earth,
逐渐上升到水面，渗入水池。 gradually rose to the surface, seeping into pools.
自1906年以来，有超过三百万的化石 Since 1906, more than three millions fossils
从400多种物种中回收。 have been recovered from over 400 species.
使这个世界上最丰富的冰河时代动物库之一。 Making this one of the world's richest repositories of ice age animals.
我以前从未见过这个。 I've never seen that before.
在一个名为“鱼缸”的玻璃幕墙实验室里 In a glass-walled lab called "the fishbowl,"
拉布雷亚古生物学家和志愿者将冰河时代的化石与焦油分开。 la brea paleontologists and volunteers separate ice age fossils from the tar.
他们揭露了他们最大的发现的头骨和下巴， They're exposing the skull and jaws of their biggest find yet,
一个近乎完整的猛犸象。 a nearly complete mammoth.
在附近的停车场发现， Discovered under a nearby parking lot,
该团队已将他命名为zed。 the team has named him zed.
La brea的焦油是保存骨骼的理想媒介。 La brea's tar is an ideal medium to preserve bone.
它穿透它们，保护一切，保护最脆弱的鸟骨 It penetrates them, protecting everything, from the most delicate bird bone
来到zed的200磅重的头骨。 to zed's 200-pound skull.
骨头是如此饱和，以至于今天焦油继续从zed的头骨渗出。 The bones are so saturated that tar continues to ooze from zed's skull today.
从他的两个大臼齿的大小，宽度和条件， From the size, width and condition of his two large molars,
他们确认zed是雄性。 they confirm zed is a male.
一头哥伦比亚猛犸象， A columbian mammoth,
他去世时年龄在48到52岁之间。 who was between 48 and 52 years old when he died.
当zed的10英尺长牙被挖掘出来时， When zed's 10-foot tusks were excavated,
他们被包裹在石膏保护夹克里。 they were encased in a protective jacket of plaster.
随着石膏被移除， As the plaster is removed,
象牙是第一次被看到 the tusks are seen for the first time
可能已过了4万年。 in possibly 40,000 years.
冰河时代的秘密各种各样。 Ice age secrets come in all sizes.
由沥青基质清除焦油坑化石 As the asphalt matrix is cleaned from tar pit fossils
像这个可怕的狼头骨， like this dire wolf skull,
它被分类和剩下的东西 it is sorted and what remains
是一个小的微型化石的宝库。 is a treasure trove of tiny micro fossils.
在这一勺沉积物中有来自两条蛇的化石骨骼， In this spoonful of sediment are the fossilized bones from two snakes,
一只小鼠的肘部和两只甲虫的腿。 a mouse elbow, and the legs of two beetles.
甚至发现了植物种子和叶子。 Even plant seeds and leaves are found.
这些微型化石是生活在拉布雷亚生态系统中的记录 These micro fossils are a record of what lived in the la brea ecosystem
4万年前， 40,000 years ago,
和当时的环境和气候的线索。 and clues to the environment and climate at the time.
Zed可能被la brea的沼泽般的环境所吸引， Zed may have been attracted to la brea's marsh-like setting,
不知道它潜在的危险。 unaware of its hidden dangers.
一旦踏入，他的命运就被封住了。 Once he stepped in, his fate was sealed.
被困在拉布雷亚焦油中的一些生物非常离奇。 Some creatures trapped in la brea's tar were quite bizarre.
沙斯塔地面树懒。 A shasta ground sloth.
这个毛茸茸的食用者在美国西部和墨西哥北部漫游。 This furry plant eater roamed the American west and northern Mexico.
巨大的前爪可能有助于抵御剑齿攻击。 It's massive fore claws may have helped to fend off sabre-toothed attacks.
虽然它和黑熊一样大， Though it was as big as a black bear,
它的同类有20英尺长，体重6,000磅。 it had relatives that were 20 feet long and weighed 6,000 pounds.
但沙斯塔最为人所知 But the shasta is best known
对于它留下的不太可能的气味线索 for the unlikely climate clues it left behind
在洞穴的黑暗中。 in the darkness of caves.
树懒在一些洞穴中保存完好 Sloth dung is so well-preserved in some caves
它在打开时闻起来像新鲜的粪便。 that it smells like fresh manure when broken open.
粪便的内容揭示了这些动物吃的东西。 The content of the dung reveals what these animals ate.
知道他们的饮食和粪便的年龄， Knowing their diet and the age of the dung,
科学家们可以追踪植被和气候的变化。 scientists can track how vegetation and climate was changing.
比他们毛茸茸的表亲更大更少毛， Larger and less hairy than their woolly cousins,
哥伦比亚猛犸象遍布整个北美洲 columbian mammoths ranged all across north America
进入今天的墨西哥。 and into present-day Mexico.
在一些地方，天然温泉的温暖水域 In some places, the warm waters of natural hot Springs
即使在冬天，他们也会把它们引诱到多汁的草丛中。 lured them to succulent grasses, even in winter.
但是失误可能是致命的。 But a misstep could be fatal.
这些陡峭，滑溜的边缘无法逃脱。 There was no escape from these steep, slippery sides.
几千年来，温泉变成了这样。 Over thousands of years, the hot Springs turned into this.
南达科他州的冰河时代墓。 An ice age tomb in south Dakota.
它拥有有史以来最大的猛犸象集中地。 It holds the largest concentration of mammoths ever found.
看起来像一个古老的墓地， Looking like an ancient burial ground,
57只哥伦比亚猛犸象，3只猛犸象， 57 columbian mammoths, 3 woolly mammoths,
还发现了28种其他冰河时代的动物。 and 28 other ice age animals have been discovered.
还有几十个被埋在地下。 Dozens more lie buried still.
猛犸象一个接一个地死在这里， One by one, mammoths died here,
在几百年的时间里 over a period of several hundred years
接近冰河时代的末期。 near the end of the ice age.
这只猛犸象的面部朝上，四肢伸展， The position of this mammoth, facing upward with limbs sprawled,
是一个悲伤的见证，他在努力爬出来的时候死去了。 is sad witness that he died while struggling to climb out.
这里的每一块骨都讲述了一个故事，就像日记一样。 Every bone here tells a story, like a diary.
即使是古老的象牙也能为我们提供有关猛犸象生命的信息。 Even ancient tusks give us information about the mammoth's life.
象牙由称为牙本质的硬质材料制成， Tusks are made of a hard material called dentin,
类似于我们的牙齿。 similar to our teeth.
每年的牙生长都记录在一层牙本质中， Each year of tusk growth is recorded in a layer of dentin,
像一个树环。 like a tree ring.
象牙的横截面显示 A cross section of the tusk shows
多年来气候宜人，吃多了 that in years with good climate and plenty to eat,
象牙长得更快，牙环更厚。 tusks grew faster and rings are thicker.
在恶劣天气和较少食物的情况下，牙环很窄。 In times of severe weather and less food, the rings are narrow.
猛犸象在大约60年的生命中长出了六套牙齿， Mammoths grew six sets of teeth over their roughly 60-year lifetime,
像今天的大象。 like elephants today.
通过确定存在哪些牙齿， By determining which teeth were present,
我们可以知道猛犸死亡的年龄。 we can know the mammoth's age when it died.
了解猛犸象的健康和年龄有助于我们了解 Understanding the health and age of the mammoths helps us to know
在他们的环境中发生了什么。 what was happening in their environment.
奇怪的是，庞大的遗址上的骨头揭示了另一个有趣的事实。 Curiously, the bones at the mammoth site reveal another interesting fact.
所有在这里丧生的猛犸象都是年轻的雄性。 All of the mammoths that perished here were young males.
也许更冒险一点，不那么谨慎 Perhaps a little more adventurous and a little less cautious
比起女性和成年人。 than the female and adults.
温泉和焦油坑保存了很多关于冰河时代动物的线索， Hot Springs and tar pits preserve many clues about ice age animals,
但是这些陷阱并没有造成大规模灭绝。 but these traps did not cause a mass extinction.
在最后一个冰河时代结束时发生了其他事情。 Something else was happening at the end of the last ice age.
猛犸象的世界变暖了。 The world of the mammoth was warming.
适应气候凉爽的动物面临着不断变化的景观。 Animals adapted for a cooler climate faced a changing landscape.
森林侵占了草原，改变了食物链。 Forests encroached on the grasslands, altering the food chain.
正如一个变暖的星球创造了生态挑战， And just as a warming planet created ecological challenges,
对野生动物的另一个新威胁出现 another new threat to wildlife appeared.
猛犸象不是人类长矛的对手。 A mammoth was no match for human Spears.
猛犸象的食物和毛皮和骨头的礼物是非常宝贵的生存资源， Mammoth gifts of food and fur and bone were invaluable survival resources,
但我们最能适应冬季的 but our greatest adaptation to winter
是非凡的人类思维 was the remarkable human mind
以及驯服我们周围世界的能力， and the ability to tame the world around us,
利用火力，火石和骨头的力量。 to harness the power of fire and flint and bone.
我们的祖先通过一系列创新来应对寒流。 Our ancestors met the cold with a burst of innovation.
他们精心制作骨头工具和针头，用皮革缝制衣服。 They crafted bone tools and needles to sew clothing from hides.
学习绘画，制作音乐和唱歌。 Learn to paint, make music and sing.
他们是有创造力，聪明才智的人，他们的语言和歌曲 They were creative, intelligent beings whose language and song
给冬夜带来新的呼唤。 gave new calls to the winter night.
什么最终导致猛犸象灭绝 What ultimately drove the mammoths to extinction
很难知道。 is difficult to know.
有人推测气候变暖 Some speculate that the warming climate
急剧减少猛犸象数量， reduced mammoth populations dramatically,
就在人类来到这里应对最后一击的时候。 just as humans arrived to deal the final blow.
大约4000年前，金字塔正在埃及建造， Roughly 4,000 years ago, while the pyramids were being built in Egypt,
最后一头猛犸象死了 the last mammoth perished
而物种不复存在。 and the species ceased to exist.
大约12000年前，冰开始融化。 About 12,000 years ago, the ice began to melt.
世界气候再次发生变化，标志着更新世的结束 The world's climate had shifted again, marking the end of the pleistocene
和全新世时代的黎明。 and the dawn of the holocene epoch.
我们的现代气候时代已经开始。 Our modern climate era had begun.
随着冰川融化， As the glaciers melted,
涓涓细流变成了种子 trickles became torrents
北美充斥着河流和洪水。 and north America was awash in rivers and floods.
到最后一个冰河时代结束时， By the end of the last ice age,
世界上最大的陆地动物中有70％已经消失， 70% of the world's largest land animals had vanished,
永远离开了。 gone forever.
全球气温仅上升16华氏度 A global temperature rise of just 16 degrees fahrenheit
足以改变整个地球的面貌。 was enough to change the entire face of the planet.
融水排回海洋，海平面再次上升。 Melt water drained back into the oceans, and sea levels rose once again.
随着冰川融化，推土冰的绝对力量 As the glaciers melted away, the sheer power of the bulldozing ice
在新创造的地理中被揭示出来。 was revealed in newly-created geography.
被困的内陆水汇集形成巨大的湖泊。 Trapped inland water pooled to form huge lakes.
五大湖。 The Great Lakes.
曾经有冰的大教堂， Where cathedrals of ice once stood,
钢铁城市兴起。 cities of steel arose.
人类繁荣昌盛。 Humans flourished.
在冰河时代，我们的人口从一百万人口增长 Our population grew from one million during the ice age
到今天数十亿。 to many billions today.
现在，我们的工业创造了如此多的温室气体 Now, our industries create so much greenhouse gas
我们人类已成为气候方程的参与者。 that we humans have become participants in the climate equation.
随着冰河时代的冰冻足迹不断缩小， As the frozen footprint of the ice age continues to shrink,
地球变得越来越温暖 the earth is becoming warmer than it has been
在过去的12万年里。 in the last 120,000 years.
现在，在上一个冰河时代结束时， Now, as at the end of the last ice age,
许多动物物种面临灭绝的威胁。 many animal species are threatened by extinction.
野生动物再次面临气候变暖， Wildlife again confronts a warming climate,
栖息地丧失和不断变化的世界的压力。 habitat loss and the pressures of a changing world.
冰河时代留下了警示提醒。 The ice age has left behind cautionary reminders.
随着全球变暖使远北地区的永久冻土融化， And as global warming melts the permafrost of the far north,
偶尔会发现一整只冰冻猛犸象。 occasionally, an entire frozen mammoth is revealed.
婴儿猛犸象lyuba Baby mammoth lyuba
当冰冷的坟墓消失时被发现。 was discovered when her icy tomb melted away.
她让生物学家震惊 She astounded biologists
因为她的完整性和令人难以置信的保存。 because of her completeness and incredible preservation.
CT扫描显示她的所有内脏均完好无损。 CT scans reveal that all of her internal organs are intact.
并发现她的喉咙和肺部的泥浆 And the discovery of mud in her throat and lungs
她暗示她死在一个浅水湖中。 suggests that she died in a shallow lake.
Lyuba死的时候只有一个月大， Lyuba was only one month old when she died,
这个年轻的猛犸象的悲惨命运，但给了我们一份礼物 a sad fate for this young mammoth, but a gift to us
她旅行了42,000年来分享她冰河时代的秘密。 that she has traveled 42,000 years to share her ice age secrets.
我们参观冰河时代的遗物并敬畏他们， We visit ice age relics and hold them in awe,
因为他们把我们和过去联系起来。 for they connect us to the past
看看lyuba就是回顾过去。 To look at lyuba is to look back in time.
毛茸茸的猛犸象，曾经是冰河时代的巨头， Woolly mammoths, once titans of the ice age,
现已灭绝， are now extinct,
而我们住在他们中间，继续生活。 while we who lived among them, live on.
来自过去冰封的生物继续为我们提供生命的线索。 Creatures from our frozen past continue to yield clues about their lives.
我们越了解他们的世界，我们就越了解自己的世界。 And the more we learn about their world, the better we understand our own.
但也许冰河时代最伟大的礼物 But perhaps the greatest gift of the ice age
既不是骨头也不是埋藏物。 is neither bone nor hide.
我们的思考帮助我们在冰层上生存下来。 It is our minds that helped us survive the ice.
只有我们的智慧 And only our wisdom
可以指导我们走向可持续的未来。 may guide us toward a sustainable future.
对于冰河时代来说，气候故事现在比以往任何时候都更加重要。 For the ice age is a climate story more relevant now than ever.