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Researchers find circadian clock in Monarch's antenna plays a major role in navigation Shelley Schlender | Michoacn, Mexico 22 March 2010 Scientists believe antennas are critical to the navigation of the Monarch butterfly. Related Links Monarch Watch

发表于:2018-12-16 / 阅读(116) / 评论(0) 分类 VOA标准英语2010年(三月)

Unit 8 Healthy Living In-Class Reading Set Your Body's Time Clock to Work for You 1 As the first rays of sunlight filter over the hills of California's Silicon Valley 1, Charles Winget opens his eyes.

发表于:2018-12-18 / 阅读(127) / 评论(0) 分类 新编大学英语阅读部分

The limpidness lettuce still has a little life left,a new study finds that produce continue to respond to life kills which enable them to keep protecting themselves from insects,and perhaps even enhance their nutritional value to us.Scientists knew t

发表于:2018-12-24 / 阅读(78) / 评论(0) 分类 Scientific American(六)月

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Birds and sea turtles can migrate thousands of miles, by reading the Earth's magnetic cues. But we too might have magnetic sensing abilitiesin our eyes. So say

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 Scientific American(六)月

Humans are pegged to a 24-hour cycle. We're locked into it not just by day and nighttheres the master timepiece in the brain called the circadian clock. But it doesn't make sense to live by a 24-hour clock in the Arctic, where it's dark or light for

发表于:2018-12-24 / 阅读(99) / 评论(0) 分类 Scientific American(三)月

人类按照24小时一循环的作息规律来生活,是因为大脑中有昼夜节律钟的协调。 研究发现,驯鹿等北极动物,在北极持续数周白天或黑夜里生活时,是没有昼夜节律钟的。 How Its Internal Clock I

发表于:2019-01-02 / 阅读(121) / 评论(0) 分类 60秒科学

Daytime Wounds Heal Faster A new study suggests that the timing of a wound affects the speed at which it heals. 一项新研究表明,受伤的时间点会影响伤口愈合的速度。 Wounds suffered during the day heal around 60 percent faster t

发表于:2019-01-03 / 阅读(77) / 评论(0) 分类 2017年VOA慢速英语(十一)月

This is SCIENCE FRIDAY. I'm Ira Flatow. You open the door of your fridge and the light goes on, right? What if the light in your fridge could stay on and be programmed to help your veggies taste better or be more nutritious? Why? Well, it turns out t

发表于:2019-02-16 / 阅读(100) / 评论(0) 分类 英语语言学习

模仿文本: More specifically, he studies the way light controls our internal clocks and circadian rhythms and works to understand how light and dark affect our well-being, everything from jet lag to serious mental health problems. Russell had to

发表于:2019-02-23 / 阅读(96) / 评论(0) 分类 英音模仿秀
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