标签：predators 相关文章
They're the big, hairy spiders of our nightmares. And it's no wonder we are afraid. Tarantulas are the biggest of all the arachnids. These spiders are killing machines perfectly adapted to their habitats. And the biggest and battiest of them all is t
国家地理2007年
A Rose By Any Other Name Just saying the word rose conjures up images of romance, secret admirers, Valentines gifts, and bridal bouquets. Romantics imagine soft, red petals and long, graceful stems, but practical gardeners know all about painful, poi
英语听力文摘 English Digest
[00:11.36]You're just going to make a left down Maples, 麻烦你前面到枫树林那左拐 [00:14.60]three blocks and we're there. Thank you. 三个站台后我们就到了 谢谢你 [00:16.80]Dad, do you think that Grandma still knows we're coming
听电影学英语-大学之旅
Broadcast: Jan 16, 2003 Experts say one of the world's most feared, but misunderstood, creatures is under 2) assault by fishermen. A new study of all types of sharks finds that there are fewer of them
VOA2003（上）-科技先知
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
新东方背诵文选
Just saying the word rose conjures up images of romance, secret admirers, Valentines gifts, and bridal bouquets. Romantics imagine soft, red petals and long, graceful stems, but practical gardeners know all about painful, pointy thorns. As the saying
2018年NPR美国国家公共电台2月
Social Saber-Toothed Cats Whats more dangerous than meeting one saber toothed cat? Meeting a gang of them. The saber toothed cat, Smilodon fatalis, existed in North and South America until 10,000 years ago. It was lion sized, but with a heavier build
英语时差8，16
Why Shrews Twitter Small mouse like mammals, shrews are not actually rodents or even closely related. Shrews are noisy little creatures constantly twittering and squeaking as they scramble through their habitat. But why? All that noise could surely a
英语时差8，16
Don: All right, Yael, you're a moth. And mating for you is a big deal because it takes eight or nine hours. So the last thing you want is for some predator to interrupt you and your mate in the act. Yael: I'm guessing that's true not just for moths.
初学者听力文摘精选
Fast forward 115 million years to the town of Bridger in south-central Montana. 推进到一亿一千五百万年前，在蒙大拿州中南部的布瑞杰镇。 It was paleontologist John Ostrum's last day of a summer searching for fossils. 正是古生
侏罗纪搏击俱乐部
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
These plant eaters are no pushovers. They are no theyre no pansies. We have records, quite a few, of adult dinosaurian predators being killed by herbivores. It did happen. It happens today. Lions get kicked in the face and die from a single blow from
探索与发现2013年
solid armor and dangerous weapons all deliver the power to stand up to huge predators. But in the world of Cretaceous, other defenders come equipped with tools not only to survive an attack but to defeat an opponent. Ankylosaurus is a herbivore desig
探索与发现2013年
Pick the World's Ugliest Insect Arizona State University and Northern Arizona University want your vote at askabiologist.asu.edu/uglybugs to help them crown the ugliest insect in the world. Adam Hinterthuer reports Will you pick Sweetness or The Goll
60秒科学
Lionfish are taking over coral reefs in the Caribbean and Atlantic. Here, Lad Akins catches one. In the waters of the Caribbean Sea, a voracious invasive species called the lionfish is threatening to overtake the reefs. Conservation groups are fighti
VOA标准英语2010年(七)月
By Nancy-Amelia Collins Pramuka Island, Indonesia 26 November 2007 In December, nations will gather on the Indonesian island of Bali to discuss ways to deal with global warming and environmental damage. Indonesia is in many ways a test case for those
VOA常速英语2007年（十一月）
Kenyas Healing Churches: Faith or Fiction? NAIROBI As Christian churches grow in size and number in Kenya, they have created a growing industry of faith healers and televangelists. Concerns are also rising that these new churches exist only to exploi
VOA常速英语2013年(八月)
2014年巴西世界杯的吉祥物已经确定为一只的三色犰狳(又称：铠鼠)。犰狳在巴西是濒危动物。此前，巴西世界杯组委会在其国内开展了为吉祥物征名的活动，总共170万人参与了此次活动并从三
英语新闻视频
Sextortion -- using nude photos of someone to press for even racier content or other goods -- is surprisingly common, a US think tank says in what it calls the first in-depth study of another danger lurking in cyberspace. 美国一家智库称，性敲
英语作文
Imagine if the only way for you to eat were to trek twenty-five miles on foot to a restaurant and then trek all the way back home afterwards. Imagine that this restaurant is a buffet, so you can't carry anything home in a doggie bag--you carry only w
英语时差8，16