科学美国人60秒 SSS Tsunami Sent Species on a Transoceanic Trip

Tsunami Sent Species on a Transoceanic Trip 海啸引发的物种跨洋迁移 The massive earthquake that rocked Japan in March 2011 took thousands of lives. It sent tsunami waves more than a hundred feet high towards northern Japan, where they batte

VOA标准英语2015--报告显示许多物种面临灭绝的风险

Report: Many Species Risk Extinction 报告显示许多物种面临灭绝的风险 While progress has been made to preserve endangered animal, plant and other species, a new report said successes are being overshadowed by declines. The International

美国有线新闻 CNN 世上仅存雄性北方白犀牛被实施安乐死 物种濒临灭绝

With the weight of between three and five tons, the white rhinoceros checks in as the planet's second largest land mammal. AZUZ: And the sub species of the white rhino known as the northern white rhino is now just two animals away from complete extin

科学美国人60秒 SSS Widening the Suez Canal Ushers In Underwater Invaders

Widening the Suez Canal Ushers In Underwater Invaders 苏伊士运河对地中海水下物种的侵害 The Mediterranean Sea is home to some 17,000 native species. But it's also home to a growing number of non-native species: 756 at last count. 756 m

漫画搞定六级词汇(音频+文本) 第103期

图片1 pray v. 祈祷，恳求，请 例句：They prayed that they would defeat their enemies soon. 他们祈祷很快打败敌人。 prey n. 被掠食者，牺牲者，掠食 vi. 捕食，掠夺，折磨 例句：Strong animals prey upon weaker on

英语听力文摘 English Digest 595、恐惧闻起来像糖！

Fear Smells Like Sugar Scientists have suspected for many years that fish might give off a chemical signal to warn other fish about the presence of predators. When a fish in a school is injured, for example, the rest of the school will panic and swim

科学美国人60秒 SSS Sweet Song Gives Away New Bird Species

Sweet Song Gives Away New Bird Species我的歌声你懂得 That, of course, is the sound of the Himalayan forest thrush. And that sound was a clue to field researchers that they might have a new species of bird on their hands. Even though it was in

科学美国人60秒 SSS Screams Heard Round the Animal World

Screams Heard Round the Animal World 人类与生俱来的尖叫声识别能力 What does panic sound like? clip of Homer Simpson scream Like that, for sure. But also like this pig sound. And this chickadee sound . But maybe you already knew that. Be

英语听力：自然百科 冰冻星球 前往地球尽头—20

These ice blocks are the size of sky creepers, and this is the bill of more glance with scoten seize man somehow travel on foot. It is one hundred miles long and one of the largest species on earth. Not nothing could prepare those early ex-dollars fo

英语听力文摘 English Digest 421、植皮有新招

Silkworm s and Skin Graft s Don: One of the neater things thats going on in biology is the genetic modification of species. By changing the instructions in their genes, we can make certain plants and animals produce things that are useful to humans.

英语听力文摘 English Digest 427、神奇的进化

Maggot evolution 蝇蛆的进化 You may already know how the evolution of a new species happens. Two or more populations of one species have to be separated from each other, such as is the case with Darwins finches in the Galapagos. Various populati

英语听力文摘 English Digest 355、狗为何会汪汪叫？

Why Dogs Bark ? 犬吠为何？ Have you ever wondered why do dogs bark ? In terms of evolution , there has to be a reason for bark ing , or it probably wouldnt be there. Is it to warn of predator s ? But dogs bark when there are no predator s around

英语听力文摘 English Digest 239、外来物种入侵

Oceans Most Wanted 伴随着人们的经济活动和国际交往，一些物种由原生存地借助于人为作用或其他途径移居到另一个新的生存环境并在新的栖息地繁殖并建立稳定种群，这些物种被称为外来物种。

VOA慢速英语2019 加拉帕戈斯群岛发现一种超过110年未见的陆龟

Tortoise Not Seen for Over 110 Years Found on Galapagos Island A kind of tortoise not seen in more than 110 years has been found in the Galapagos Islands. 加拉帕戈斯群岛发现了一种110多年未见的乌龟。 A female from a species known a