By Paul Sisco Washington, DC 08 February 2007 watch Update Wolves report Gray wolf The gray wolf once roamed from coast to coast and from Alaska to Mexico in North America. It is believed they are second only to humans in adapting to climate extremes

发表于:2019-01-08 / 阅读(94) / 评论(0) 分类 2007年VOA标准英语(二月)

By Heda Bayron Hong Kong 21 December 2007 Japan has backed down from a highly controversial plan to hunt endangered humpback whales off Antarctica, after fierce criticism by Australia. The Japanese whaling fleet, however, still plans to hunt almost 1

发表于:2019-01-09 / 阅读(73) / 评论(0) 分类 VOA常速英语2007年(十二月)

By Margaret Besheer New York 24 September 2007 More than 140 countries have gathered at the United Nations for a summit on climate change. U.N. Secretary General Ban-Ki moon says the earth's warming is an urgent, global challenge that requires unprec

发表于:2019-01-13 / 阅读(115) / 评论(0) 分类 2007年VOA标准英语(九月)

By Kane Farabaugh New York 29 May 2006 watch WTC Stairs report As the fifth anniversary of the September 11 terrorist attacks draws near, one of the only remaining pieces of the World Trade Center in New York City is in danger of extinction. VOA's K

发表于:2019-01-13 / 阅读(151) / 评论(0) 分类 2006年VOA标准英语(五月)

By Phil Mercer Sydney 21 May 2008 Australian and U.S. scientists have successfully inserted a gene from the extinct Tasmanian tiger into a mouse embryo. They say the result has been bone and cartilage from the extinct marsupial developing inside the

发表于:2019-01-13 / 阅读(91) / 评论(0) 分类 VOA标准英语2008年(五月)

Visitors to the California city of San Diego can enter a world of elephants, jaguars, camels and other modern animals whose distant cousins lived in North America. The San Diego Zoo's Elephant Odyssey is a new exhibit that shows the links between an

发表于:2019-01-13 / 阅读(139) / 评论(0) 分类 VOA标准英语2009年(六月)

By Daniel Schearf Bangkok 25 September 2009 Cambodian fishing boats at anchor in middle of Mekong River, on outskirts of Phnom Penh, Cambodia's capital (file photo) A conservation group says newly discovered species in the Mekong river region are at

发表于:2019-01-13 / 阅读(58) / 评论(0) 分类 VOA标准英语2009年(九月)

Laos, Neighbors Face Off on Mekong River Dam Dispute Countries along the Mekong River have disagreed with Laos on its proposal to build the first hydropower dam on the main stream of the lower river. Laos says the dam will cause no serious problems,

发表于:2019-01-14 / 阅读(85) / 评论(0) 分类 VOA标准英语2011年(四月)

Wind Turbines Take Steep Toll On Birds And Bats Estimates by the Department of Energy indicate that in the United States alone, there will be more than 100,000 wind turbines by 2030. John Anderson is policy director at the American Wind Energy Associ

发表于:2019-01-14 / 阅读(58) / 评论(0) 分类 VOA标准英语2012年(十月)

By Solana Pyne Marrakesh, Morocco 17 November 2009 Moroccan carpets are prized for their beauty and can fetch hundreds of dollars in stores. But little of that money ends up in the hands of the women who spend months weaving the carpets. Rug weavers

发表于:2019-01-14 / 阅读(70) / 评论(0) 分类 VOA标准英语2009年(十一月)

用国际协议限制非法捕捞活动 Its estimated that illicit fishing accounts for up 26 million tons of seafood a year and costs the global economy as much as 26 billion dollars annually. An international agreement to help curb the problem is g

发表于:2019-01-14 / 阅读(51) / 评论(0) 分类 VOA标准英语2015年(十二月)

(SOUNDBITE OF WHALE CALL) ARI SHAPIRO, HOST: Many animals that live in the ocean communicate with sound, like this humpback whale. (SOUNDBITE OF WHALE CALL) SHAPIRO: But these voices could soon be drowned out by powerful sonic booms set off in the oc

发表于:2019-01-16 / 阅读(77) / 评论(0) 分类 2018年NPR美国国家公共电台2月

MARY LOUISE KELLY, HOST: A growing body of research shows climate change is bad, not just for the planet, but for our mental health. People who've lived through weather disasters are more prone to depression, suicide, post-traumatic stress. Psycholog

发表于:2019-01-17 / 阅读(71) / 评论(0) 分类 2017年NPR美国国家公共电台4月

SCOTT SIMON, HOST: Companies and corporations are in business to make money for themselves, their workers, their stockholders. But can they make too much? Ralph Nader thinks Apple hit that limit earlier this month when it became the first trillion-do

发表于:2019-01-17 / 阅读(81) / 评论(0) 分类 2018年NPR美国国家公共电台8月

By Paul Sisco Washington, DC 07 July 2006 watch Asteroid report A major asteroid passed by the Earth this week, and another is heading this way. An asteroid visible in the night sky Asteroids are similar to comets and meteors. But they are larger, m

发表于:2019-01-20 / 阅读(151) / 评论(0) 分类 2006年VOA标准英语(七月)

The pearl luggers then turned their attention to something else, a much bigger target. The reef has always provided a great haven for large animals, like turtles who nest on the coral piece. Whole populations of turtles were brought to the verge of e

发表于:2019-01-22 / 阅读(47) / 评论(0) 分类 自然百科2011年

As the reversal approaches, the decay of our magnetic field will continue and cosmic radiation will get increasingly close to the Earth's surface. As the reversal approaches, the decay of our magnetic field will continue and cosmic radiation will get

发表于:2019-01-22 / 阅读(70) / 评论(0) 分类 自然百科2011年

The numbers of tigers in the wild in South East Asia have dropped by more than 70% a little more than a decade. That's the claim in a new report from the WWF. The organization says there were an estimated 1,200 tigers in the Greater Mekong Region dur

发表于:2019-01-22 / 阅读(63) / 评论(0) 分类 自然百科2010年

But there is a problem with the idea that hunting caused the mass extinction. Mammoths were not the only animals to disappear. Camels survived for millions of years in North America, but disappeared around the same time as the mammoths. Wild horses f

发表于:2019-01-23 / 阅读(76) / 评论(0) 分类 探索与发现2013年

By Kari Barber Dakar 29 October 2007 A new World Conservation Union report says a large number of the world's endangered primates are at risk of extinction in West and Central African countries. Experts say hunting for bushmeat is threatening the ani

发表于:2019-01-31 / 阅读(69) / 评论(0) 分类 2007年VOA常速英语(十月)