侏罗纪搏击俱乐部 第105期:肉食者的美餐

The landscape of modern Utah scarcely resembles the landscape of 156 million years ago, when Allosaurus ruled supreme, there were fewer mountains. 现代犹他州的地形跟一亿五千六百万年前大相径庭，在异特龙称霸之时，那里没

侏罗纪搏击俱乐部 第104期:史前琥珀解密

Well, the answer is amber - fossilized tree sap. 答案是琥珀，树液的化石。 We find all kinds of prehistoric insects, plants, and even small reptiles trapped within amber. 我们能发现琥珀里面裹着各种史前昆虫、植物甚至小型

侏罗纪搏击俱乐部 第99期:恐龙夫妻协同作战

We see the same sort of behavior among lions where the male will simply act as a distraction to drive prey towards the awaiting female. 我们在狮群中见到类似行为雄狮只是起干扰作用把猎物赶向等待着的雌性。 It's a great w

侏罗纪搏击俱乐部 第94期:最孤独的掠食者

In 2007, paleontologists of Manchester University made a breakthrough discovery. 在2007年，曼彻斯特大学的古生物学家们取得了一项突破性的发现。 By studying the leg bones, musculature and mechanics behind them, they were able

侏罗纪搏击俱乐部 第68期:全球气候变化是催化剂

The Allosaurus was so focused on the fact that Camarasaurus was stuck, it wasn't in top predator mode. 异特龙过于关注圆顶龙被困泥中，这一点它们没有使用顶级掠食者模式。 That meant it got in too close. 就是说它们靠得

侏罗纪搏击俱乐部 第66期:体温出现红色警报

Under the intense heat of the Jurassic sun, scientists believe an unseen force would begin to take its toll. 在侏罗纪烈日的曝晒之下，科学家们相信一种不可见的力量会发挥其威力。 The massive size of these Allosaurus make

侏罗纪搏击俱乐部 第132期:躲开这致命的袭击

Gastonia lowers his body to protect his underside. 加斯顿龙伏低身体保护身下。 His tail is heavily armored, but its powerful muscles are able to move it with surprising speed. 它的尾巴全副武装，但其有力的肌肉能带动尾巴以

侏罗纪搏击俱乐部 第117期:何为双目视力?

Along with its enormous size, one feature set T-Rex apart from all other meat eaters- true binocular vision. 除了其巨大的身躯外，有一个特点让霸王龙从所有肉食者中脱颖而出真正的双目视力。 It had forward focusing vi

侏罗纪搏击俱乐部 第109期:千万别去惹迅猛龙

Along with its deadly claws, Utahraptor relied on its teeth as an effective means of killing its prey. 除了其致命的爪子外，犹他盗龙凭借它的牙齿作为一个杀死猎物的有效工具。 And to ensure it always had a fresh set, Uta

Leatherback1 Turtle2 Disappearing

Broadcast: February 28, 2003 By George Grow This is the VOA Special English Environment Report. Scientists have appealed for international cooperation to protect leatherback sea turtles. The scientist

与美国小学生一起学英文第12册 第3期:地质学家

Geologists 地质学家 Geology is a very interesting field of science. 地质学是一个非常有趣的科学领域. People who study geology are called geologists. 研究地质学的人被称为地质学家. Geologists explore the Earth. 地质学家

英语听力：自然百科 生存危机下的人体反应

In animals, this part of the brain evolved around the time of the dinosaurs before mammals existed. It's hardwired to beat starvation. For three days Jean-Luc has been trapped underground. He hasn't had a morsel to eat. He doesn't know it, but his br

万物简史 第127期:势不两立的科学(28)

Of course dinosaur hunting didn't end with the deaths of the great nineteenth-century fossil hunters. Indeed, to a surprising extent it had only just begun. In 1898, the year that fell between the deaths of Cope and Marsh, a trove greater by far than

万物简史 第124期:势不两立的科学(25)

It also marked the start of a war between the two that became increasingly bitter, underhand, and often ridiculous. They sometimes stooped to one team's diggers throwing rocks at the other team's. Cope was caught at one point jimmying open crates tha

万物简史 第122期:势不两立的科学(23)

They began as mutual friends and admirers, even naming fossil species after each other, and spent a pleasant week together in 1868. However, something then went wrong between themnobody is quite sure whatand by the following year they had developed a

万物简史 第115期:势不两立的科学(16)

Owen swiftly distinguished himself with his powers of organization and deduction. At the same time he showed himself to be a peerless anatomist with instincts for reconstruction almost on a par with the great Cuvier in Paris. He become such an expert

【时间旅行者的妻子】20

I roll over onto my back and Henry props his head on his hand and looks down at me. Our faces are about six inches apart. Its so strange to be talking, almost like we always did, but the physical proximity makes it hard for me to concentrate. Did I t

老友记精校版第1季 第19期:参加助产培训班(7)

Ross: Anyway.... um...(Starts to sweep. ) So, you uh you nervous about Barry tomorrow? 总之，额，明天要见巴瑞你紧张吗？ Rachel: Oh...a little. 哦，有一点。 Ross: Mmhmm... 嗯。 Rachel: A lot. 很紧张。 Ross: Mm. 嗯。 Rache

60秒科学:Monkey Drives Dinosaur Game Extinct

The U.S. Consumer Product Safety Commission and DND Imports of Los Angeles recently announced a voluntary recall of something called the Dinosaur Era 2 Hunting Dinosaur playset. Because the monkey contained too much lead. Yes, the monkey. Each set i

老友记 第一季 24 The One Where Rachel Finds Out

本集简介： 乔伊为赚钱去捐精，但当他和新女友一个果篮制造商日益情浓，事情变得有点麻烦。大家一起烧烤为瑞秋庆祝生日，罗斯刚放下生日礼物就急着上路，他说要远赴中国为博物馆取回