VOA常速英语2018--鼠类过多不利于岛屿生态健康

According to the study, rats have decimated seabird populations across 90 percent of the worlds island archipelagos. Professor Nick Graham of Lancaster University in Britain says at a recent visit at the Chagos archipelago in the Indian Ocean, there

科学美国人60秒 SSS Grazing Cattle Trim the Menu for Birds

Grazing Cattle Trim the Menu for Birds 愿为鸟儿修改食谱的牛群 When birds face the destruction of their habitat, some species dont make it while others survive. But what happens at the very beginning of the process, just as a bird's habitat

特效化妆师大对决 第五季 12 鸟人尖喙带血霸气十足

本期造型的主题是鸟人，四位化妆师各选一种鸟类以其形象创造出鸟人造型。他们有什么大胆创意？在造模过程中又出现了哪些意外？最终的成品会得到评委怎样的评价？精彩内容，尽在本期

【英语时差8,16】鸟类中不同的行走方式

Last time we were thinking about why some birds hop and other birds walk. We decided that you can't make any blanket statements about this, because there will always be exceptions. But in general it's true that larger birds are more likely to walk an

英语听力文摘 English Digest 596、以前的昆虫是很庞大的！

In The Past, Insects Were Huge! Once upon a time, hundreds of millions of years ago, many insects were much larger than they are today. Scientists have found fossilized remains of dragonflies with wingspans several feet in diameter. Other insects wer

VOA常速英语2018--雪鸮：生活在北极的鸟类

From a birds eye view the vast Alaska tundra is nothing more than an endless flat surface symmetrical and seemingly uninhabited.However, a closer look shows that it is home to lots of busy creatures that live comfortably and the grass and pits filled

VOA标准英语2015--新型风力发电机避免误伤鸟类

Bladeless Wind-Power Generator is Friendly to Birds 新型风力发电机避免误伤鸟类 Wind turbines are efficient sources of cheap energy but also a source of concern as their huge spinning blades frequently kill birds and bats. A new type of w

VOA常速英语2015--新型风力发电机不会伤及鸟类

新型风力发电机不会伤及鸟类 In 2002, Spanish inventor David Yanez saw a short film about the Tacoma Narrows Bridge in the U.S., collapsing in strong wind. 2002年西班牙发明家大卫亚尼斯看了一部关于强风造成美国塔科马

美国语文第四册 第144期:鸟类趣闻(4)

How wonderful is that instinct by which the bird of passage performs its annual migration! 候鸟具有每年准确迁徙的惊人本能！ But how still more wonderful is it when the bird, after its voyage of thousands of miles has been performed, 可

科学美国人60秒 SSS 鸟类唱歌导师很重要

Finches Can Learn to Sing Differently Than Their Genetics Dictate In the most recent podcast we discussed how baby bats learn their callsfrom all the other bats in their crowded colonies. And we mentioned in passing that songbirds usually get tutored

科学美国人60秒 SSS 房地产市场繁荣破坏了鸟儿的情人节

Urban development is encroaching on forests in the Pacific Northwest. And its also ruining Valentines Day for some songbirds. Because urban growth is making it a challenge for some birds like the Pacific Wren to stay faithful to their partners, at le

留美老师带你每日说英文 第941期:鸟类的鸣唱

Isolated finches still produce what are called innate or isolate songs. A specific tune might be taught, but the instinct to sing seems to be hardwired into a songbird's brain. Innate songs sound different from the cultured songs learned from other f

英语听力文摘 English Digest 363、鸟是如何呼吸的？

How Birds Breathe 鸟是如何呼吸的 Y: Don, flying is tougher than walking or running, right? So how come birds dont get winded and run out of breath? D: Actually, in terms of distance per unit energy, flying is pretty efficient . Plus birds have

2016年CRI China Unveils Flexible Green Card Policies

That is Dr. Wang Huiyao, an expert on global migration and global talent, speaking with our reporter Zhou Jingnan.

英语听力文摘 English Digest 334、千差万别的鸟蛋

How Eggs Get Their Color 鸟蛋颜色的形成 Depending on the species, bird eggs can be any color rang ing from chickens plain white to a robins blue, streaked , spotted, bright, pale, and anything in between. We take a look at some of the reasons

【英语时差8,16】鸟类的饮食与羽毛（上）

Sometimes its easy to understand how an evolutionary change took place, but its more difficult to understand why. For example, consider the beautiful birds of paradise which live in the forests of New Guinea. The males of many bird-of-paradise specie