英语听力：自然百科 为生而死的生物

Hi, its Kasey-Dee Gardner, in this weekend Why Tell Me Why will answer an interesting viewer question. The viewer wants to know why certain species die after they reproduce. So, we're here to find out the answer. Urn, so there are a bunch of species,

英语听力：自然百科 地球自转的奥秘

Well, the story of the earth spin goes back all the way to the origin of the solar system, four and a half billion years ago. The solar system started out as a cloud of gas and dust. And these gas and dust clumped together to form the sun and the var

英语听力：自然百科 臭鼬的日记

This new mom has six helpless kids. The babies are born with black and white markings on their naked skin that are soon covered with fur of the same pattern. At the age of four weeks, they open their eyes for the first time. In another three weeks or

英语听力：自然百科 百年难遇的日食奇观

The longest total solar eclipse of the 21st century put most of Asia, from India to China, into darkness on Wednesday, as millions gathered to watch this once-in-a-lifetime phenomenon. The eclipse began at about midnight Greenwich Mean Time and was f

英语听力：自然百科 恐龙杀手

Scientists have confirmed for the first time that Australia was once home to a theropod dinosaur that was big, fast and terrifying, not unlike the Velociraptor featured in the movie Jurassic Park. It was an 1,100 pound meat-eating predator with three

英语听力：自然百科 蛙类拯救阿根廷？

In Argentina, the small city of San Luis is adopting the frog as its provincial hero. Frogs have been touted by some as the antidote to a dengue fever outbreak that's gripped Argentina. There have been over 20,000 cases recorded this year, including

英语听力：自然百科 科考发现新物种

Some of these mountains in northern Mozambique have never been studied by scientists until now. The British government funded Darwin Initiative has sponsored a series of expeditions to five northern Mozambique(莫桑比克) mountains. Scientists have

英语听力：自然百科 奇妙的变性鱼

One of the Australian state of New South Wales favorite ocean-living icons is Bluey, the blue groper. Their friendly nature makes them a favorite of divers. It's magical, like any type of marine species. You know, if you can scuba dive or snorkel alo

英语听力：自然百科 拯救野马

They are considered the only wild horses left in the world. The takhi, known as Przewalski horses in the west, don't look like their domastic cousins, they are noted for their large heads, stiff zebra like meats, pop bellies, and short stocky legs, a

英语听力：自然百科 间歇泉记事

Russia's Kamchatka Peninsula is known for its volcanic and seismic activity, but not since the 1960s has a new geyser appeared here. A ranger in the Kronotsky Nature Reserve was the first to see the column of boiling liquid last month. Another observ

英语听力：自然百科 探秘北国奇鸟- 矛隼

Some birds are better at hunting than others and this male clearly isn't the best. He was her mate last year as well. Could his idle nature be the reason why last year's clutch failed? The chicks should be growing exponentially, yet they are getting

英语听力：自然百科 聪明的猴子

This is a patas monkey, military looking with a fine mustache. It's at home in Savannas, where its too dry for jungle trees. Monkeys have been leaving the trees for millions of years, but we are the only ape to do so. Some of what makes us special co

英语听力：自然百科 阿拉斯加淘金热

With the price of gold at all-time highs, a familiar fever is once again sweeping Alaska. Everybody has their own reason why they are into it. Some people, you know, you find what you got and you try at once to find a little bit of gold. This is kind

英语听力：自然百科 最后的巨型淡水鳖

Conserving wildlife is a struggle all governments face, but nowhere more sole than in China, where the worlds last female rafetus turtle (斑鳖)is about to be introduced to her new home. 600 miles and 17 hours into the journey, the team arrives at t

英语听力：自然百科 伊拉克古物重现原貌

The same technology used to make prosthetic limbs is now being used to clone some of the world's earliest manuscripts from Mesopotamia, an area near modern-day Iraq. When the US invaded Iraq in 2003, thousands of artifacts were stolen from museums in

英语听力：自然百科 记忆之墙

April 19th marks the 65th anniversary of the Warsaw Ghetto uprising, when the last residents of the Jewish Ghetto rose up and ultimately fueled a revolt against Nazi power. The Ghetto was razed following the revolt, its residents killed. Today these

英语听力：自然百科 同胞相残

On a Minnesota farm 40 miles away, another family is further along. Their two eaglets(小鹰) have already hatched(孵化). The mother feeds her four-day-old daughter. The two-day-old male, hardly able to hold his head up, doesnt seem to be getting a

英语听力：自然百科 蛙之殇（二）

Id say the most amazing footage we were lucky enough to shoot was done in Panama. We were out in the forest and we found an egg clutch with a male frog guarding his tadpoles which was really amazing. So Andy Young, the wonderful cinematographer who s

英语听力：自然百科 蛙之殇（一）

I have always loved frogs. They are just some of the most amazing creatures on earth. Theyve been around for 250 million years. They actually survived the dinosaurs. They come in just about every color, shape and size. But they are disappearing. Im A

英语听力：自然百科 琅勃拉邦

Hi, I'm Paddy Kim. In this edition we journey to Laos, what I would call a real hidden gem of a destination, located in Southeast Asia. We take you now to Luang Prabang. It's an ancient royal city that sits on the Mekong River, a place where you'll f