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!

英语全能特训(微信小程序)
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

Many Animals Staying Awake at Night to Avoid People

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

Lions, tigers and other mammals are staying awake at night to avoid human beings, a new study finds.

Scientists have long known that human activity can lead to changes in nature. Many mammals may move around less or travel to distant places to avoid contact with people. By being awake at night, mammals can also be on guard against possible attackers and spend less time looking for food.

The latest research found even activities like hiking and camping can frighten animals and cause them to become more active at night.

Kaitlyn Gaynor of the University of California, Berkeley led the study. She said, 'It suggests that animals might be playing it safe around people. We may think that we leave no trace when we're just hiking in the woods, but our mere presence can have lasting consequences.'

She and her team of researchers examined 76 other studies involving 62 species on six continents. Among the animals studied were lions in Tanzania, tigers in Nepal, and otters in Brazil.

Researchers compared how much time those animals were active at night in areas of human activity, such as hunting, hiking and farming. The team found that, on average, human presence caused an increase of about 20 percent in night time activity, even in creatures that usually sleep at night.

Results were published in the journal Science.

The findings are unusual because no one else has gathered all this information and looked at it in such detail, noted Ana Benitez Lopez of Radboud University in the Netherlands. She examined the research, but was not part of the study.

Ecologist Marlee Tucker was surprised that any kind of human activity is enough for mammals to see people as a threat.

'It's a little bit scary,' she said.

Tucker works at the Goethe University Frankfurt in Germany. She was not part of the study.

Kaitlyn Gaynor said the change in hours will affect animals that have already have trouble in the darkness. But she said that the changes could also help other animals reduce conflict with people.

'Humans can do their thing during the day; wildlife can do their thing at night,' she said.

Gaynor added, that way, people would be sharing the planet with many other species.

I'm Jonathan Evans.

The Associated Press reported this story. Susan Shand adapted the report for VOA Learning English. George Grow was the editor.

Words in This Story

mammal– n. an animal that feeds milk to its young and that usually has hair or fur covering most of its skin

vigilant– adj.carefully noticing problems or signs of danger

hike– v. to walk a long distance, especially for pleasure or exercise

trace – n.a very small amount of something

consequence– n.something that happens as a result of a particular action or set of conditions

species– n. a group of animals or plants that are similar and can produce young animals or plants

scary– adj. causing fear

Write to us in the Comments Section or on our Facebook page.

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