标签：完美捕食 相关文章
331.When is the most convenient time for you? [00:10.48]你什么时候最方便？ [00:20.95]332.When will it be ready? [00:29.78]什么时候能准备好？ [00:38.61]333.Where are you going? [00:45.99]你去哪儿？ [00:53.37]334.Where can I chec
零距离李阳疯狂英语口语
Sleep is very ancient. In the electroencephalographic sense we share it with all the primates and almost all the other mammals and birds: it may extend back as far as the reptiles. There is some evide
新东方现代文背诵篇章
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
2014年Scientific American(十)月
Some are little more than rocks, others substantial mountains, covered in woodland. The first British person to see that was captain Cook, who stood here in 1770, and for the first time, realized the scale of the Great Barrier Reef. He also realized
自然百科2014年
What Animals Are Most Like People 什么动物和人类最像 Once again we go to the mailbag. A listener writes: 我们又一次打开邮箱。一位听众写到 Dear A Moment of Science, Besides chimps, which animals do you think are the most like
初学者听力文摘精选
-Bella: I know what you are. -Edward: Say it. Out. Loud. Say it. -Bella: Vampire. -Edward: Are you afraid? -Bella: No. -Edward: Then ask me the most basic question. What do we eat? -Bella: You won't hurt me. Where are we going? -Edward: Up the mounta
跟着美剧练发音
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
国家地理2007年
神奇女子与鲨鱼和谐共游 Woman Swims With Sharks in Perfect Harmony The woman can hold her breath for six minutes while swimming with the predators.
英语新闻视频
A rabbit might outrun a fox, but stalks of wheat arent making any quick getaways. Plants, for the most part, dont flee from predators. But some primitive marine plants are breaking the rules. Marine scientists at the University of Rhode Island School
Scientific American(十)月
文本： The South Pacific is a vast ocean wilderness. Its waters are teeming with life, from tropical coral reefs that attract the great variety to the cooler, temperate waters that attract the great numbers. So why is it that in the midst of all t
跟着英剧练发音
Because of their sophisticated senses and remarkable physique, white tips are great reef hunters. At night, they turn it into an art form, better than all other sharks. We expect sharks to be hunters, but after dark, the reef itself becomes one giant
自然百科2014年
This habitat into connect under all of vital to the well being of the Great Barrier Reef. This is the little known story of one of the most complex and spectacular Eco-systems on earth. The Great Barrier Reef is over 2,000 kilometers long which means
自然百科2014年
When they leave the safety of the mangroves, they must cross that sandy desert and many hazards waiting for them in the lagoon.This is a mantis shrimp. From his neatly capped barrow, he surveys the world with the most complex visual system known to s
自然百科2014年
For these baby animals, it was a race to grow up over the brief summer to be tough enough to face the winter. One young animal that died in its first winter was discovered in the permafrost of an Alaskan gold mine. Recreated here are the best-mummifi
探索与发现2012年
One giant short-faced bear is more than a match for two lions. But in this bitter climate, lions cant afford to go without a meal for long. A mammoth calf in its first winter is a tempting sight. But mammoths are attentive mothers and they have the b
探索与发现2012年
populated by millions of odor receptors. Complicated, crazy-straw, tortuous nasal passageway that went from the nostrils, made several loops through the snout before it went down into the throat. Ankylosaurus supersensitive nose can pick up a carnivo
探索与发现2013年
The tip is designed not the split on impact. It absorbs the stress of all that raw power the hammer gives because its not solid bone. Instead, its honeycombed with soft tissue, marrow, blood and fact. Ankylosaurus combines steel-like protective plate
探索与发现2013年
In a prehistoric world, theres a war waging between herbivores and carnivores, and the plant-eaters are winning. They seem to break all of the rules. Theres nothing like them around today. For these plant-eating giants, survival relies on a battery o
探索与发现2013年
大家每天都用用纸巾擦手，但是你是否想过，其实你可能一直都没有正确的使用擦手纸。在这个既具启发性又具趣味的小演讲中，乔史密斯给我们展示了怎样完美使用擦手纸的方法。
TED公开课:会心一笑
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
英语单词荟萃