VOA常速英语2015--法国史前洞穴复制品对人们开放

Replica of Prehistoric Cave Opens in France 法国史前洞穴复制品对人们开放 A detailed copy of a cave containing the oldest figurative drawings made by Europes prehistoric inhabitants opened over the weekend [April 25.2015] in France, not

VOA常速英语2014--美国向泰国归还数百件被掠夺文物

US Returns Looted Ancient Artifacts to Thailand 美国向泰国归还数百件被掠夺文物 BANGKOK The U.S. government on Wednesday returned to Thailand hundreds of ancient artifacts that federal authorities say were looted from an important archa

VOA标准英语2015--考古学家发现农业起源的线索

Archeologists Uncover Clues on Beginnings of Agriculture 考古学家发现农业起源的线索 New findings by archeologists excavating a prehistoric site in Jordan may shed new light on the way early humans transitioned from hunter-gatherers to fa

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Could it be that drastic water shortage was the reason for the mastodons' epic migrations? Another big piece of this puzzle lies far out to sea. This is the ocean floor. But this isn't rock sprouting out at the bottom. It's wood. It's the remains of

美国科学60秒 SSS 2012-12-12

What prehistoric genius first discovered how to transform milk into delicious cheese? We may never find out, but we now know that humans were purposefully making cheese as early as 7,500 years ago. The finding is in the journal Nature. To make cheese

2005年NPR美国国家公共电台五月-New Exhibit Updates Story of Dinosaur Era

Tomorrow New York's American Museum of Natural History opens an exhibit designed to provide insight into dinosaur lifestyles. The exhibit showcases new discoveries , many of them from China. They include feathered dinosaurs and an ancestor of T-rex.

VOA标准英语2012--Ice Age Melt Offers Future Climate Clues

Ice Age Melt Offers Future Climate Clues University of Wisconsin geologist Anders Carlson studies ice sheet melt from land and ocean sediment cores. His study describes what prehistoric Earth was like in North America and Northern Europe some 140,000

VOA标准英语2011--Sense of Smell Jumpstarted Brain Evoluti

Sense of Smell Jumpstarted Brain Evolution Mammals have much bigger brains than other animals. Scientists aren't sure exactly why, but new research published this week in the journal Science suggests it might have something to do with mammals' acute

VOA标准英语2014--Ancient Tooth Plaque Reveals Diet

Ancient Tooth Plaque Reveals Diet Long before the development of agriculture, our prehistoric ancestors had a good knowledge of plants not just for food, but for medicine. Researchers found evidence of this by studying some ancient teeth found in Cen

美国国家公共电台 NPR 6,000-Year-Old Knee Joints Suggest Osteoarthritis Isn't Just Wear And Tear

AILSA CHANG, HOST: When you get up in the morning, do you hear a snap, crackle, pop? We're not talking about cereal here. We are talking about your knees. Well, if you reach for the painkiller before that cup of coffee, you are in good company. There

科学美国人60秒 SSS Cave Dwellers Battled Bed Bug Bites, Too

Cave Dwellers Battled Bed Bug Bites, Too古人也挨臭虫叮 Picture a prehistoric human encampment, in a cave. What do you see? Maybe some animal hides, bones from last night's dinner, a small fire? But what you might not picture are the other cave

英语听力：探索发现 2012-11-18 美洲大平原 American Serengeti—10

Colombian mammoths had to feed almost round the clock to fuel their bulky bodies. But as the ice age ended, food was not the mammoths' biggest problem. A new and deadly predator began to infiltrate the plains, a match for any prey, even the mighty ma

英语听力：2013-07-21 《恐龙的战争》3 顽强防御—16

Thats a wave of energy that could knock over a predator or at least discombobulate it, scramble its brains. Despite holding a deafening secret weapon, a Parasaurolophus, like other plant eaters, knows that the best way to stay alive is to keep predat

英语听力：探索发现 2013-02-17 猛玛象进城记 Mammoths to Manhattan—9

By the mid 1800s, the horse and the cowboy had come to symbolize the wild west. And of course, with the cowboys came cattle. As the bison quickly vanished from the landscape, cattle filled their place. Meanwhile increasing numbers of the tame horses

英语听力：2013-05-17 完美捕食 Perfect Predators —7

Attacking another T-Rex may seem like suicide, but a creature with such a voracious appetite has to find food by any means. Cannibalism is the rule. Its not the exception. If youre a carnivore and theres meat there, you take advantage of it. In fact,

英语听力：2013-06-07 完美捕食 Perfect Predators —16

I think that a big pterosaur on the ground wouldve been spooky because they would be moving around on all fours. Theyd probably have those sort of quick, precise movements like birds, but theyd be huge. Quetzalcoatlus lives by its own rules. Most mea

奥巴马每日发言"Protecting That Which Fuels Our Spirit"(20

暂无音频 STATEMENT BY THE PRESIDENT Today I have signed into law H.R. 146, the Omnibus Public Land Management Act of 2009. This landmark bill will protect millions of acres of Federal land as wilderness, protect more than 1,000 miles of rivers throu

2007年VOA标准英语-Paleo-Artists Depict Prehistoric Worlds for Mod

By Mike O'Sullivan Los Angeles 14 May 2007 Dinosaurs and other prehistoric creatures hold an enduring fascination, especially to the artists known as paleo-artists who bring the ancient animals to life. Mike O'Sullivan reports on the work of two pale

英语听力文摘 English Digest 413、偶尔的“山顶洞人”

Sometime Cavemen 偶尔的山顶洞人 From the bestselling novel Clan of the Cave Bear to the 1981 movie Caveman, pop-culture tends to misrepresent prehistoric people as cave dwelling brute s . But even the most speculative recreations of early huma

英语听力文摘 English Digest 179、偶尔的“山顶洞人”

Sometime Cavemen 我们的祖先是否一直生活在一个地方呢？山顶洞人就一直生活在山洞里吗？ From the bestselling novel Clan of the Cave Bear to the 1981 movie Caveman, pop-culture tends to misrepresent prehistoric people as c