科学美国人60秒 SSS 狩猎规则改变了熊妈妈的照顾事项

Hunting Rules Have Changed Mama Bear Care In North America, many critters commonly encountered todaylike wild turkeys or white-tailed deerwere brought back from near oblivion through conservation efforts led by hunters. Meanwhile, in Africa, some of

英文书摘精选 Rototillers Of The Rockies落基山脉的旋耕机

Todays Moment of Science digs up the story behind one of the grizzly bears more unusual nicknames: the Rototiller of the Rockies. 今天科学一刻将会深入挖掘灰熊的一个不同寻常的绰号背后的故事，这个绰号就是落基山脉的

英文书摘精选 The Genetic Relationships Between Bears熊之间的遗传关系（

Researchers at Penn State University and the University of Buffalo have completed the most in depth bear DNA study to date. The project has revealed a lot about genetic relationships between bears, and also the unlikely romances that pepper their his

国家地理-2008-05-12 Wolf Hunting Tactics 合作至上的狼群

We are here in Yellowstone National Park to follow some grey wolves and observe the deadly brilliance of the pack. Theyve learned to cooperate, hunting their prey with many acting as one pack. This mother grizzly knows how to protect its cub and its

英语听力文摘 English Digest 588、真实的熊的生活是怎样的？

The Bare Necessities Of Bears In the movie The Jungle Book, Balloo the bear spends his days singing and dancing and munching paw-paws. Actually, this is a pretty accurate picture of real bears, except for the singing and dancing. North American bears

2006年NPR美国国家公共电台十一月-Listening to Winged Wildlife in the Arct

News, news, the heck with news, let's go outdoors, Alaska, which really is the great outdoors, but getting cold these days, the birds migrating to the lower 48, and that's why producer Martyn Stewart went in June, he was going to record birds. He set

2007年VOA标准英语-Glacier National Park Rapidly Losing Its Glacie

By Jeff Swicord Glacier National Park, Montana 03 September 2007 National parks in the United States are revered for their natural beauty and wildlife. They are fragile ecosystems that are cared for and preserved for future generations. Because of th

VOA标准英语2014--美用黄蜂对抗甲虫入侵

Wasp Recruited to Fight Invasive Beetle 美用黄蜂对抗甲虫入侵 Scientists are pitting insects against insects in a battle to control an invasive species. U.S. Department of Agriculture researchers have released tiny parasitic wasps in forests

VOA标准英语2013--Scientists Search for Those Long Missing

Scientists Search for Those Long Missing Researchers are developing new techniques to find hidden graves. They say it would help locate the remains of a lone murder victim or the mass graves of victims of war. The research has been presented at the M

英语博客(A cup of English):065 A wild life sanctuary

Beginners. I know that you podlisteners have heard about my trip to New Zealand, but, I'm afraid, you will have to hear more. There is much more to tell. One of the things that it is interesting to learn about when you go to another country, is the w

美国国家公共电台 NPR Deathless Prose Added To Our Collective Memories In 2017

ROBERT SIEGEL, HOST: As 2017 draws to an end and we try to assess it, one measure is, what deathless prose has been added to our collective memories over the past 12 months? Well, Fred Shapiro has assembled the top 10 quotations of the year from inte

英语听力：自然百科 Wolf Hunting Tactics 合作至上的狼群

We are here in Yellowstone National Park to follow some grey wolves and observe the deadly brilliance of the pack. Theyve learned to cooperate, hunting their prey with many acting as one pack. This mother grizzly knows how to protect its cub and itse

英语听力：自然百科 黄石公园的夏天 Yellowstone—14

Bison lose the last of their winter coats. In the heat, tempers fray. To escape soaring ground temperatures, cowbirds choose a bison's back as a cool place to feed and catch the breeze. Biting insects now become a draining nuisance. A grizzly bear es

英语听力：自然百科 黄石公园的夏天 Yellowstone—18

But just as the first of Yellowstone's new generation are preparing to leave, its last visitors are arriving. Night after night, army cutworm moths have been escaping the heat of a distant prairie. They have been flying in on favorable winds, hiding

英语听力：探索发现 2012-11-02 美洲大平原 American Serengeti—3

Even the mastodon is buried here, a long dead relative of modern elephants. This was once a bear, but not like any bear in North America today. Claw marks gouged into the cave wall showed the bear was not killed direct by the fall. It made a desperat

英语听力：探索发现 2013-02-10 猛玛象进城记 Mammoths to Manhattan—6

Saber-tooth died out, but another big cat survived. The puma may have been more able to adapt because its diet is more varied and includes small prey. The grizzly bear also lived through the post Ice Age changes and now thrives in North America. Once

英语听力：2013-06-02 完美捕食 Perfect Predators —14

propel this creature weighing as much as a grizzly bear, from a dead stop to a launch speed of 50 kilometers per hour all in a fraction of a second. I think that seeing a pterosaur like Quetzalcoatlus actually take off would have to be one of the mos

2006年VOA标准英语-Alaska's Salmon Industry Faces Challenges

By Elaine Lu Washington, D.C. 15 May 2006 watch Alaska Salmon report Wild salmon fishing used to be a big part of Alaska's way of life. Today it is part of the state's tourism industry, as its commerc

美国国家公共电台 NPR Why It Took 'Forrest Gump' Author Nearly 20 Years To Write A New Novel

Why It Took 'Forrest Gump' Author Nearly 20 Years To Write A New Novel play pause stop mute unmute max volume 00:0004:57repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your

2015年CRI 约旦政府誓言报复IS烧死约旦飞行员 我使馆就挪威令中国学者限期离境提交涉

Jordan's government is vowing strong, earth-shaking and decisive action, following the release of an Islamic State video showing the death of a Jordanian pilot the group had been holding. The grizzly video shows the pilot Muath al-Kaseasbeh being bur