As we travel south, so the suns influence grows stronger. And at 50 degrees of latitude, a radical transformation begins. Summers here are long enough for broadleaf trees to replace conifers. Broadleaves are easier to eat and digest, so now animals c

发表于:2019-01-23 / 阅读(88) / 评论(0) 分类 探索与发现2012年

Midsummer on the tundra and the sun does not set. At these altitudes, the suns rays are glancing and not enough of their energy reaches the ground to enable trees to grow. Youll need to travel five hundred miles south from here before that is possibl

发表于:2019-01-23 / 阅读(71) / 评论(0) 分类 探索与发现2012年

Day 10. And the mother has let her cubs a mile from the den. Its time to put them to the test. Theyve grown enormously in confidence, but they dont have their mothers sense of urgency. At last it seems that they are ready for their journey. And they

发表于:2019-01-23 / 阅读(70) / 评论(0) 分类 探索与发现2012年

But they are hungry and eager to reach their mother whos delayed feeding them on this special day. Now she lures them with the promise of milk, the only food the cubs have known since they were born, deaf and blind beneath the snow some two months ag

发表于:2019-01-23 / 阅读(81) / 评论(0) 分类 探索与发现2012年

They are constantly on the move. New-born calves have to be up and running the day they are born. But the vast herds do not travel alone. Wolves. Packs of them, eight to ten strong, shadow the migration. And they are hungry. Its the newly born calves

发表于:2019-01-23 / 阅读(74) / 评论(0) 分类 探索与发现2012年

The penguins stay when all other creatures have fled because each guards a treasurea single egg rested on the top of its feet and kept warm beneath the downy bulge of its stomach. There is no food and no water for them. And they will not see the sun

发表于:2018-12-27 / 阅读(68) / 评论(0) 分类 探索与发现2012年

As the afternoon and the clouds start to roll in, the suns heat is beginning to cool off a little. Hear that? Its thunder. Its amazing, you know. Sun. I tell you its gonna be rain within a few hours. Its all moving this way. Out here in the wet seaso

发表于:2018-12-27 / 阅读(59) / 评论(0) 分类 探索与发现2012年

Im in the Kimberley in north Australia. Its a wet season. A thunderstorm is raging. And more rain is probably on its way. Im making my roof at an angle to help the rain run off. Ive put up a basic frame made from thin branches and Im tying it all tog

发表于:2018-12-27 / 阅读(38) / 评论(0) 分类 探索与发现2012年

But as the landscape alters, therere new dangers. Everythings just changing now. Look, the weather is getting worse, the wind picking up. But also, this river is really widening, which means that its prime crocodile territory. There are two types of

发表于:2018-12-27 / 阅读(40) / 评论(0) 分类 探索与发现2012年

Im in the baking heat of the Kimberley in north Australia. Out here, over 3,000 people each year get bitten by snakes. Im gonna show you what to do if you come face-to-face with one. Its an olive python. Lets just get him out here. There you come. We

发表于:2018-12-27 / 阅读(35) / 评论(0) 分类 探索与发现2012年

But their success hasn't gone unnoticed. From many miles away, the short-faced bear can smell blood on the breeze. He sniffs his way towards the source. Meanwhile, satisfied and sleepy, the pride settles down for a snooze. More than twice the weight

发表于:2018-12-27 / 阅读(59) / 评论(0) 分类 探索与发现2012年

The scene is set for a daily ice age drama. Only the very largest are safe now. Patience is the key, the lionesses close in, waiting for their opportunity. The first charge causes chaos, but this is just what the lions want. ln the melee, they've alr

发表于:2018-12-27 / 阅读(43) / 评论(0) 分类 探索与发现2012年

And all this meat in one small area attract the scavenger, the short-faced bear. Led by his super sensitive nose, his long limbs carry him many miles a day in search of carrion. He's picked up a scent, but where's the carcass? Sometimes the smaller,

发表于:2018-12-27 / 阅读(48) / 评论(0) 分类 探索与发现2012年

So let's go back in time, back 13,000 years to relive one day in the life of North America's great ice age plains. It's early morning at the end of a long, hot summer. Even major rivers are beginning to run low. Colombian mammoth herd follows the riv

发表于:2018-12-27 / 阅读(85) / 评论(0) 分类 探索与发现2012年

Larger than any lion alive today, this would have been an awesome predator. These caves were probably its winter den. With such abundant game down on the plains, this hunter's life must have been pretty good. Sheer size and power and the benefit of l

发表于:2018-12-27 / 阅读(45) / 评论(0) 分类 探索与发现2012年

13,000 years ago, the ice age cheetah was the pronghorn's greatest enemy. And pronghorn would have needed all their amazing speed. The American cheetah was larger than its African cousin. But it had the same Achilles' heel. A cheetah's high-performan

发表于:2018-12-27 / 阅读(50) / 评论(0) 分类 探索与发现2012年

This trail leads to the cave and the freshly dead bison, just out of reach. Hunger makes the bear risk everything. He falls and joins the bison in its tomb. Now he can eat his fill. but after that there's no way out. ln time he'll be just one more ic

发表于:2018-12-27 / 阅读(71) / 评论(0) 分类 探索与发现2012年

At first people said, digital animation, impossible. 最初人们认为数字动画简直是天方夜谭 Too much computer time. 电脑制作时间过长 Too awkward. 画质怪异 It would be too expensive to bring it to market. 耗资巨大 难以市场

发表于:2018-12-03 / 阅读(51) / 评论(0) 分类 探索与发现2012年

For the first time, computer characters are warm, cuddly, relatable. 有史以来 电脑人物头一次显得如此有血有肉 活泼可爱 栩栩如生 These were animated characters but they seemed like they belonged in our family or 虽然他们只

发表于:2018-12-03 / 阅读(53) / 评论(0) 分类 探索与发现2012年

I'm Adam Savage - And I'm Jamie Hyneman. 我是亚当沙维奇 我是杰米海曼 We are at the Computer History Museum in Mountain View, California. 我们在位于加州山景城的电脑历史博物馆 You don't have to be a tech geek 即使你不是

发表于:2018-12-03 / 阅读(78) / 评论(0) 分类 探索与发现2012年