官方APP下载:英语全能特训(微信小程序版,支持苹果手机、安卓手机)
创办于2003年
UNSV记不住?那就记中文谐音“忧安思危”吧!
  Slow and Steady Wins the Race!
UNSV英语学习频道 - Slow and steady wins the race!
公众微信服务号
英语全能特训(微信公众服务号)
UNSV英语学习频道淘宝网店
客服短信:18913948480
客服邮箱:web@unsv.com
初级VIP会员
全站英语学习资料下载。
¥98元/12个月

Endangered Butterfly Lives on Military Base

阅读次数:


VIP会员专享下载:(非VIP会员无权下载!如果想下载,但还不是VIP会员,请点此订购
下载方式:使用鼠标右键(注意是鼠标右键!)点击下面的MP3音频/MP4视频链接,然后选择“另存为…”。
MP3节目录音 MP3节目录音 
文章原文
同步字幕

As a large explosion is heard in the distance, a St. Francis Satyr butterfly flies around, ready to lay as many as 100 eggs. At one point, this brown butterfly could be found in only one place: a military base in the American state of North Carolina.

An estimated 3,000 St. Francis Satyrs exist. The very small insects are one of the rarest butterfly species in the world.

The almost 50-year-old Endangered Species Act protects the St. Francis Satyr along with about 1,600 other American species. However, recent changes to the law have led some to worry that threatened species in the United States may be at increasing risk.

The endangered species act – successes and challenges

To some experts, the existence of these butterflies means the Endangered Species Act has done its job. More than 99.2% of the species protected by it survive, The Associated Press has found. In contrast, only 39 U.S. species — or about 2% of the overall number — have made it off the endangered list. These include well-known successes such as the bald eagle, peregrine falcon and the American alligator.

Jake Li is the director for biodiversity at the non-profit Environmental Policy Innovation Center in Washington, DC. He says the condition of many species on the endangered list is worsening. Only eight percent of species are improving, says an organization report.

Li said many species will remain on the list. "And I don't think that's a failure of the Endangered Species Act itself," he added.

Political disagreements

Lawmakers designed the law to prevent species from disappearing. President Richard Nixon signed the Endangered Species Act into law on Dec. 28, 1973. The measure led to many political conflicts in the 1970s and 1980s. One famous example is the fight over plans to build the Tellico Dam in Tennessee.

Now, the law is in dispute once again.

In September, the Trump administration changed the endangered species process. Opponents argue that the changes weaken the law.

Among them: a change in the rules for species that are "threatened," the classification just below endangered. Instead of saying that "threatened" species get the same protection as endangered species, the new rules include possible exceptions.

Gary Frazer, assistant director of ecological services at U.S. Fish and Wildlife, says the changes improve the situation. He said they permit the government to better protect "things that are important to conservation."

Michael Bean, a former Interior Department official, disagrees. He calls the plan a "step back," although not "catastrophic."

Noah Greenwald, with the non-profit Center for Biological Diversity, is more concerned. He calls the changes "a disaster."

The biggest problem, Li and others say, is that new species in trouble are not being added to the list.

Meanwhile, scientists across the globe warn of the coming extinction of a million species in the decades ahead.

St. Francis Satyr

Nick Haddad, a Michigan State University biology professor, is the world's leading expert on the St. Francis Satyr butterfly. He got permission to go to the animal's home on the military base.

The butterfly appears only twice a year for two weeks each time. When it does, Haddad goes to Fort Bragg and joins a team of Army biologists aiming to improve the butterflies' living environment.

Nick Haddad, left, watches a captive-bred female St. Francis' satyr butterfly fly off after it was released into the wild at Fort Bragg in North Carolina on Monday, July 29, 2019. Haddad has been studying the rare butterfly for more than 15 years. (AP Photo/Robert F. Bukaty)
Nick Haddad, left, watches a captive-bred female St. Francis' satyr butterfly fly off after it was released into the wild at Fort Bragg in North Carolina on Monday, July 29, 2019. Haddad has been studying the rare butterfly for more than 15 years. (AP Photo/Robert F. Bukaty)

Haddad and his students also walk through the swamp and count the insects.

"It couldn't be better than this," Haddad says, smiling as a butterfly takes flight. "When I see, every year, just a slight change in the right direction of the butterfly's conservation, let me tell you, that inspires me."

I'm John Russell.

And I'm Alice Bryant.

Seth Borenstein reported on this story for the Associated Press. John Russell adapted it for Learning English. Caty Weaver was the editor.

Words in This Story

contrast – n. something that is different from another thing

classification – n. an arrangement of people or things into groups based on ways that they are alike

catastrophic – adj. causing great damage

swamp – n. land that is always wet and often partly covered with water

inspire – v. to make (someone) want to do something : to give (someone) an idea about what to do or create

We want to hear from you. Write to us in the Comments Section.

网友的学习评论(0条):
版权所有©2003-2019 南京通享科技有限公司,保留所有权利。未经书面许可,严禁转载本站内容,违者追究法律责任。 互联网经营ICP证:苏B2-20120186
网站备案:苏ICP备05000269号-1中国工业和信息化部网站备案查询
广播台