标签:物种 相关文章
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
(San Francisco,AP)Prehistoric human hunters,using spears and fire, drove many large animals to extinction. (美联社旧金山电)史前时期的猎人使用矛与火猎捕许多大型动物,迫使它们绝种。 About 13,000 years ago, large
我们今天播种的小麦,玉米和大米的物种也许在气候变化的威胁下在未来不会那么兴旺。加里福勒带我们到一个埋在挪威深山里的全球种子银行里,那里储存着任何明天所需要的各种作物多样
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
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
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
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
英语作文 As is often read in the newspaper reports, wild life especially the rare species is threatened with extinction. Human beings are making attempts to hunt wild animals for a big profit., which, of course, results in a sharp decrease in the nu
In Africa's battle against malaria, two low-tech tacticsinsecticides and bed netshave done a decent job killing off mosquitoes. But it's mainly one species that's been affected. That's a species called Anopheles gambiae, sometimes called the African
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
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
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
Some come and go in a matter of days. Others build and grow and can last for years. As plants take root and protect them from the elements. -The first glance of my seen that zone cave that pretty in hospit of the environment, but actually can support
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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
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.
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
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
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。
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