Polar Bears Must Work Harder On Faster Sea Ice Treadmill奔跑吧!北极熊 Polar bears live on floating rafts of sea ice, hunting for seals. But in the Arctic Ocean north of Alaska, the cold polar wind constantly blows that ice from east to west. Wh

发表于:2019-01-20 / 阅读(51) / 评论(0)

2017年Scientific American(四)月

科学美国人60秒 SSS 狐狸“变”成狗

Selective Breeding Molds Foxes into Pets狐狸变成狗 Want to make a dog? Well, wolves evolved into dogs at least once. But it turns out you can also make whats basically a dog by starting with wild foxes. Select the ones that do not seem to want t

发表于:2019-01-20 / 阅读(40) / 评论(0)

2017年科学美国人(五)月

科学美国人60秒 SSS 酒店有臭虫？可能是假的！

Some Hotel Bed Bug Sightings May Be Bogus酒店有臭虫？可能是假的！ If you're a savvy traveler, when you hunt for a hotel you probably search TripAdvisor for any mention of bed bugs. But here's the dirty secret behind those bed bug sighting

发表于:2019-01-20 / 阅读(64) / 评论(0)

2017年Scientific American(六)月

科学美国人60秒 SSS 染色体来打击冒牌鱼子酱

Chromosomes Combat Counterfeit Caviar染色体来打击冒牌鱼子酱 Caviar is one of the world's priciest foods: it can cost thousands of dollars a pound. And caviar from the beluga sturgeon is the most exclusive of all. But even experts have a ha

发表于:2019-01-20 / 阅读(59) / 评论(0)

2017年Scientific American(六)月

科学美国人60秒 SSS 在万圣节，考虑一下巧克力蚊

For Halloween, Consider the Chocolate Midge As you unwrap a Halloween candy or two, it's worth paying your respects to the real reason for many of the treats: a tiny fly whose trick is to make chocolate possible. They're all in the family Ceratopogon

发表于:2019-02-03 / 阅读(52) / 评论(0)

2018年科学美国人10月

科学美国人60秒 SSS 老树是生态系统的黄金使者

Old Trees Are Ecosystem Gold Well, lots of people recognize that as humans get older they tend to have less and less children...trees do it the other way around.David Lindenmayer. He studies conservation, landscape ecology and biodiversity at the Aus

发表于:2019-02-13 / 阅读(63) / 评论(0)

2018年科学美国人2月

科学美国人60秒 SSS Neandertal Face Shape Was All Over the Air

Neandertal Face Shape Was All Over the Air The jutting midface of Neandertals seems to have evolved to help get large volumes of air into an active body that needed lots of oxygen. Full Transcript Neandertal walks into a bar. Bartender says, Why the

发表于:2019-02-14 / 阅读(59) / 评论(0)

2018年科学美国人4月

科学美国人60秒 SSS 相生相克

Planting Milkweed for Monarchs? Make Sure it's Native Monarch butterflies depend on milkweed. They lay their eggs on milkweed, and their caterpillars eat only the leaves of the plant. No milkweed means no monarchs. So the best way to help declining m

发表于:2019-02-14 / 阅读(57) / 评论(0)

2018年科学美国人4月

科学美国人60秒 SSS NRA会议期间枪击事件下降

To See Gun Injury Drop Hold An NRA Meeting The annual meeting of the National Rifle Association is coming up in May. It's scheduled for Dallas. And if past events are any guide, gun injuries may actually go down in Texas, during the event.When a conv

发表于:2019-02-14 / 阅读(54) / 评论(0)

2018年科学美国人3月

科学美国人60秒 SSS 萌宠猫咪

Psychologist Saho Takagi, a graduate student at Kyoto University in Japan, strolls into one of Japan's many cat cafes. These establishments allow customers to pay an hourly fee for the chance to cuddle some cats. They're popular in Japan because so m

发表于:2019-02-14 / 阅读(69) / 评论(0)

2018年科学美国人3月

科学美国人60秒 SSS 有着天才个性的乌鸦

Ravens Crow with Individual Flair There's a well-known conspiracy of ravensthat's what you call a group of ravensthat likes to hang out near a zoo in the Austrian Alps. Every day these ravens conspire to steal the food that's set out for the wild boa

发表于:2019-02-14 / 阅读(73) / 评论(0)

2018年科学美国人3月

科学美国人60秒 SSS 先思后”言”

Right Whales Seem To Think Before They Speak As animals grow, the sounds they make change. But some sounds continue to change, even after an animal matures. That's true for humans, and now it turns out to be true for North Atlantic right whales, too.

发表于:2019-02-14 / 阅读(118) / 评论(0)

2018年科学美国人4月

科学美国人60秒 SSS 红细胞可“记住”并适应高海拔

Head to the mountains, and if the steep trails don't slow you down, the thin air will. There's less oxygen up thereso strenuous activity can leave you dizzy, out of breathor worse. But even though you're beat, biochemical processes are already busy a

发表于:2019-02-14 / 阅读(105) / 评论(0)

2017年Scientific American(二)月

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词