By Peter Heinlein Pop icon Ricky Martin has gone to the United Nations to appeal for global action to protect children from sexual predators. The singer perhaps best known for his hit song Livin' La V

发表于:2018-12-08 / 阅读(63) / 评论(0) 分类 VOA2004(下)--文化艺术

I'm tired of a guy very much 24/7. Thats when she made this video. The State Attorney of Florida dosen't wanna prosecute the 23-year-old man that's raped me and drugged me. The state attorney's office declined our request for an interview. But this

发表于:2018-12-11 / 阅读(72) / 评论(0) 分类 访谈录2008

Coyotes. In the last two decades theyve become common in almost every North American metropolitan area. Stanley Gehrt is a wildlife ecologist at Ohio State University who studies urban coyotes in Chicago. He spoke October 20th at the ScienceWriters20

发表于:2018-12-24 / 阅读(55) / 评论(0) 分类 2014年Scientific American(十)月

Plants can pull carbon dioxide, the planet warming greenhouse gas, out of earth's atmosphere. But these aren't the only living organisms that affect carbon dioxide levels and thus global warming. Nope, I'm not talking about humans. Humble sea otters

发表于:2018-12-24 / 阅读(41) / 评论(0) 分类 Scientific American(九)月

In the oysters were raised in much the same way as dirt farmers raised tomatoes- by transplanting them. First, farmers selected the oyster bed, cleared the bottom of old shells and other debris, then scattered clean shells about. Next, they planted f

发表于:2018-12-30 / 阅读(97) / 评论(0) 分类 考研背诵50篇

We are here in the Svalbard Islands of Norway to observe one of the most astonishing breathtaking daredevil initiation rites on the planet. Thousands of guillemots are nesting on the sheer rock cliffs, far beyond the reach of predators. Now here is t

发表于:2018-12-30 / 阅读(87) / 评论(0) 分类 国家地理2007年

Almost ninety percent of all alligators die in their first two years of life, falling prey to other predators including their own. But normally they don't prey on humans, so why would an alligator attack a woman. Yovy Jimenez's fatal encounter is the

发表于:2018-12-30 / 阅读(154) / 评论(0) 分类 国家地理2007年

Yesterday, I had the most unusual thing to do. If you had asked me a couple of years ago if I could see myself doing what I did yesterday, I would have told you that you're insane. I delivered a Bobcat to a taxidermist. Take a while to chew on that s

发表于:2019-01-01 / 阅读(50) / 评论(0) 分类 英语博客 A cup of English

Yakima is a small city located an hour and a half's drive(1) from Wenatchee. It is a wide valley, famous for its grapes and apples. We were there last weekend for a baseball tournament, the first of the season(2). One interesting fact about Yakima is

发表于:2019-01-01 / 阅读(109) / 评论(0) 分类 英语博客 A cup of English

Fish raised in the more acidic seawater that would result from higher carbon dioxide levels forget to flee predators. More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the grow

发表于:2019-01-02 / 阅读(48) / 评论(0) 分类 60秒科学

Birds Learn Each Others Languages by Listening, Experts Say Wild animals are known to listen to each other for warnings that predators are near. Some birds, for example, flee when neighbors make a loud noise to announce a snakes presence. 众所周知,

发表于:2019-01-03 / 阅读(57) / 评论(0) 分类 2018年VOA慢速英语(八)月

This mother bear's experience gives her family a good chance of survival until spring arrives. They will return again and again as the thaw releases more fish. On the warmer plains and valleys that surround the plateau, grazers are on the move. They

发表于:2019-01-05 / 阅读(57) / 评论(0) 分类 自然百科2012年

Its unlike any other creature that has walked the planet. T-Rex is different. Something about Tyrannosaurs and Tyrannosaurus Rex itself is different than other predatory dinosaurs. But for such a celebrated killer able to take on the toughest creatur

发表于:2019-01-23 / 阅读(64) / 评论(0) 分类 探索与发现2013年

19 meters tall and almost 30 meters long. Its neck alone is 4 stories long, a single vertebra almost as tall as a grown man. And a single thighbone weighs over half a ton. They seem to break all of the rules. Theres nothing like them around today. Co

发表于:2019-01-23 / 阅读(113) / 评论(0) 分类 探索与发现2013年

图片1 Those of you who listen to my podcast on a regular basis, know that one of my hobbies is gardening. Whenever I have a free moment, I'm out there planting, weeding, or sowing seeds. It is September now, and the season for growing is just about

发表于:2019-01-28 / 阅读(52) / 评论(0) 分类 英语博客 A cup of English

Sharks Rule the Reef's Underwater Food Chain Predators like wolves affect their ecosystems by eating their prey. But a more subtle impact involves fear. Predators also terrify prey species. And when, for example, elk are hiding, they don't spend as m

发表于:2019-02-14 / 阅读(62) / 评论(0) 分类 2018年科学美国人1月

Small, tasty mammals like dwarf mongooses have one main goal: do not get eaten. So the animala type of weaselhas a surveillance system. While most of the group focuses on finding food, a handful of others watch for predators. They take turns so that

发表于:2019-02-14 / 阅读(68) / 评论(0) 分类 2018年科学美国人1月

Ms. Sanchez: Okay, kids. Im Ms. Sanchez, your substitute for this week. Im taking all of you on the field trip tomorrow. Listen up. There are some ground rules we need to go over . First, each of you will have a partner and you will hold hands while

发表于:2019-02-18 / 阅读(47) / 评论(0) 分类 地道美语播客

今天我们要学的词是 foolproof. Foolproof的意思是简单有效的,不会出错的。Social networks whose target audience is kids, acknowledge that there may be no foolproof way to block online predators. 那些以儿童为主要消费者的

发表于:2019-02-19 / 阅读(48) / 评论(0) 分类 英语单词荟萃

Bird Communication Through Song Bird song is lovely to hear, a romantic addition to any landscape, but what exactly does it mean? Just like we must learn to talk, birds learn to sing. They listen to their parents and try to imitate them, often stumbl

发表于:2019-02-21 / 阅读(52) / 评论(0) 分类 英语时差8,16