But how did one man and a spear produce the huge force behind this blow? The answer lies with small bits of ivory like this. They were once part of an atlatl, or spear thrower. An atlatl acts as a sort of catapult, magnifying the strength of a hunter

发表于:2018-12-03 / 阅读(63) / 评论(0) 分类 探索与发现2012年

Rescuers Work to Save Wildlife Affected by California Oil Spill SAN DIEGO Dead animals have been found almost daily since a pipeline failed May 19, releasing thousands of gallons of crude oil into the ocean and beaches of central California. While it

发表于:2018-12-08 / 阅读(43) / 评论(0) 分类 VOA标准英语2015年(五月)

The U.S. continues to prosecute endangered species traffickers. Michael Hegarty, an Irish national, was sentenced in federal court in Miami, Florida, on November 14th to 18 months in prison to be followed by three years of supervised release for frau

发表于:2018-12-08 / 阅读(79) / 评论(0) 分类 VOA标准英语2017年(12月)

Wolves Need More Room to Roam狼群需要更多生存空间 Wolves are vital players in various ecosystems. So we humans need to develop a better tolerance for wolves. And the wolves need more space. Thats according to a new study in the journal Natu

发表于:2018-12-24 / 阅读(50) / 评论(0) 分类 2017年Scientific American(六)月

SCOTT SIMON, HOST: This summer in Arkansas, a weed-killing chemical called dicamba drifted across the landscape and damaged millions of acres of crops. And the injury went deeper. It split rural communities. It destroyed friends and took a toll on th

发表于:2019-01-08 / 阅读(52) / 评论(0) 分类 2017年NPR美国国家公共电台10月

The spreading oil spill in the Gulf of Mexico is contaminating nesting and feeding grounds for sea turtles. All six species in U.S. waters are listed as endangered or threatened under the Endangered Species Act. Fragile species Barbara Schroeder, who

发表于:2019-01-09 / 阅读(58) / 评论(0) 分类 VOA标准英语2010年(七)月

By Ron Corben Bangkok 21 February 2007 Thailand is backing new efforts to stem illegal trade in wildlife in Southeast Asia. The campaign was given the go-ahead by Thai Prime Minister at a ceremony in Bangkok close to markets where trade in exotic wi

发表于:2019-01-12 / 阅读(94) / 评论(0) 分类 2007年VOA标准英语(二月)

By Joseph Mok Washington, DC 29 May 2006 watch Wildlife Rehabilitation For the past 20 years, the New Mexico Wildlife Rehabilitation Center has taken in numerous injured animals, cared for them, and released them back into the wild after recovery. V

发表于:2019-01-13 / 阅读(126) / 评论(0) 分类 2006年VOA标准英语(五月)

A report by a number of leading conservation groups warns that unless prompt corrective measures are taken, the planet is heading toward an ecological credit crunch. For VOA, Tom Rivers reports from London. Cover of the Living Planet Report The repo

发表于:2019-01-13 / 阅读(76) / 评论(0) 分类 VOA标准英语2008年(十月)

In the Asian zodiac, this is the year of the tiger but conservationists say wild tiger populations are quickly disappearing. In Cambodia, there is hope that a pair of special dogs from the United States can help save the tiger. Daniel Schearf | Mondu

发表于:2019-01-13 / 阅读(86) / 评论(0) 分类 VOA标准英语2010年(二月)

A proposed breeding program for the critically endangered Siamese crocodile received a significant boost this month with the news that 35 crocodiles at a wildlife rescue center in Cambodia are purebred Siamese. Robert Carmichael | Phnom Penh 20 Nove

发表于:2019-01-14 / 阅读(67) / 评论(0) 分类 VOA标准英语2009年(十一月)

Conservation Groups Unveil Regional Action Plan to Save Great Apes A new action plan has been unveiled to protect Central Africas gorillas and chimpanzees. It outlines threats to the great apes across six countries. The regional action plan is a join

发表于:2019-01-14 / 阅读(58) / 评论(0) 分类 VOA标准英语2015年(四月)

Dale Aden has been farming most of his life, just like his father, and his fathers father. I am a third generation farmer on this land. His land is in Okabena, Minnesota, right along the Okabena creek, where for many years, Aden watched helplessly as

发表于:2019-01-22 / 阅读(62) / 评论(0) 分类 自然百科2008年

We see people selling bushmeat everywhere...and, its more or less putting a shame on our dignity and our commitment to fight illegal poaching. From Cameroons hinterlands to the urban centers, vendors openly display smoked monkeys, gorillas, snakes, a

发表于:2019-01-31 / 阅读(71) / 评论(0) 分类 VOA标准英语2010年(二月)

Houston Sprawl Leaves Wildlife Stranded休斯敦扩张叶野生动物链 HOUSTON, TEXAS Houston, Texas, and its surrounding suburbs are growing fast and sprawling out into natural forest areas that are the habitat for many species of indigenous wildl

发表于:2019-02-01 / 阅读(46) / 评论(0) 分类 VOA常速英语2013年(八月)

保护濒危野生物资源 Imperiled species of fish and wildlife in the U.S. will benefit from a total of $5.1 million in grants to 11 states through the U.S. Fish and Wildlife Services competitive State Wildlife Grants (SWG) program. 美国鱼类和

发表于:2019-02-01 / 阅读(54) / 评论(0) 分类 VOA常速英语2013年(九月)

Hollywood actress Stefanie Powers is keeping alive the African legacy of the late film star William Holden, who established a well known game ranch and sanctuary in Kenya. Powers is president of the William Holden Wildlife Foundation, and she spoke

发表于:2019-02-02 / 阅读(78) / 评论(0) 分类 VOA标准英语2008年(七月)

By Ravi Khanna New York City 12 June 2007 The Bronx Zoo these days has a special attraction for visitors -- a snow leopard from Pakistan. Leo landed at the zoo last year after his mother was killed and authorities found him confused and wandering in

发表于:2019-02-06 / 阅读(92) / 评论(0) 分类 2007年VOA标准英语(六月)

By Phil Mercer Sydney 23 October 2007 Australian researchers are teaming up with zoos and wildlife parks around the world in a bid to save the Tasmanian devil. It is the largest carnivorous marsupial and is being devastated by a mysterious facial tum

发表于:2019-02-06 / 阅读(74) / 评论(0) 分类 2007年VOA常速英语(十月)

LULU GARCIA-NAVARRO, HOST: This summer, we'll be bringing you stories on the effects of climate change on people around the world. We begin in Spain and Portugal, where an early summer heat wave has ignited devastating forest fires. More than 60 peop

发表于:2019-02-13 / 阅读(76) / 评论(0) 分类 2017年NPR美国国家公共电台7月