Decrease in Shark Population Harms Ocean 1)Ecosystems

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

Medicine from the Sea

Medicine from the Sea By Kevin Krajick / Originally appeared in Smithsonian , May 2004. Reprinted by permission. From slime to sponges, scientists are plumbing the ocean’s depths in search of new me

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NATURE'S NURSERY: ESTUARIES As the oceans are the source of life on earth, the estuaries are our planet's nurseries. An estuary is the body of water where a river meets the ocean. Salt water from the ocean and fresh water from the river mix together

火山喷发中,古时代的南非人没有受伤害

Ancient People in South Africa Unharmed by Volcanic Eruption About 74,000 years ago, the Mount Toba volcano erupted on what is now the Indonesian island of Sumatra. The eruption caused a worldwide environmental disaster. It may have destroyed ancient

Atlas Shows Coral Reefs Shrinking Fast

By Rosanne Skirble Coral reefs are home to the greatest diversity of plant and animal life found in any habitat, anywhere on the earth. But, while they are found in 101 countries and territories, the

科学家根据海洋的颜色测量其健康度

Scientists Measure Ocean Health by Its Color 科学家根据海洋的颜色测量其健康度 You wouldn't order phytoplankton from a menu, but these microscopic green algae are an important food. The

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The Properties Of Water Earth is an ocean planet．About three billion years ago，life on our planet began in the deep blue seas．Ninety-nine percent of the living space on earth is in the oceans．Marine life is incredibly rich and varied． There

2007年VOA标准英语-Researchers Find Large-Scale Death of Coral in

By Chad Bouchard Jakarta 23 April 2007 Scientists have discovered that an earthquake two years ago in Indonesia lifted hundreds of kilometers of sea floor out of the water, causing the largest death of coral reefs ever recorded. As Chad Bouchard rep

VOA标准英语2012--Fish-Sucking Parasite Named After Bob Marley

Fish-Sucking Parasite Named After Bob Marley The new species is called Gnathia marleyi, named in honor of the late reggae star, Bob Marley. Lead researcher Paul Sikkel, a marine biologist at Arkansas State University with a passion for Marleys music,

VOA标准英语2009年-Bush Establishes Huge Pacific Marine Sanctuary

U.S. President George Bush is launching one of the biggest conservation efforts in the world. He is designating large tracts of the Pacific as national monuments - meaning they are protected from commercial fishing, mining and other uses. President

VOA标准英语2010年-Mountain of Trash Blights Historic Leb

The Lebanese city of Saida is known for its historic ruins dating to the 5th century BC. It also is known for its giant garbage dump, which residents call trash mountain. The mountain has grown steadily for more than 30 years, and city residents, tou

WildAid Shark Protection

WildAid, an international environmental conservation organization, protects endangered species through communication campaigns aimed at raising awareness of the threats facing wildlife all over the world. With the support of celebrities like Chinese

英语听力：自然百科 阿布扎比海牛

From the sculpted beauty of dessert dunes to the undersea realms of the Persian Gulf, the United Arab Emirates is a study in contrast. And while most people associate Arabia with desert life, the region is in fact teeming with marine animals as well,

VOA标准英语2010年-Coral Reefs Breed New Species, Fossil

When we lose reefs, we lose basically the cradles of evolution in the oceans. Wolfgang Kiessling A new study out this week highlights the role that coral reefs play in evolution, adding another reason to preserve these delicate, diverse, and often be

雅思分类词汇：环境资源相关(六)

海洋环境MARINEENVIRONMENTS 海洋生态系统Marineecosystems 藻花Algalbloom 海底生态系统Benthicecosystems 海洋污染Marinepollution 污染沉积物Marinesediments 海洋环境Oceancircul

经济学人251:海洋生态 欢迎来到塑料星球

Science and technology 科学技术 Marine ecology 海洋生态 Welcome to the plastisphere 欢迎来到塑料星球 What is pollution to some is opportunity to others 对一些人意味着污染对另一些人却意味着是机会 SINCE 2008 geologi

Decline of Big Fish Upsets Ocean Balance

By 2050, small fish could dominate(控制支配) the oceans because of the rapid decline of larger, predator fish. In a new report, the U.N. Food and Agriculture Organization finds that one-third of the worlds fisheries are overexploited, depleted or

VOA标准英语2010年-Obama Visits Oil Imperiled U.S. Gulf C

President Barack Obama is briefed by National Incident Commander U.S. Coast Guard Commandant Adm. Thad Allen in Venice, La., as he visits the Gulf Coast region affected by the BP (British Petroleum) oil well spill, Sunday, May 2, 2010. President Bara

英语听力精选进阶版 6375

It's not every day that you find a motorcycle or a concrete dock washed ashore, but that's what people on the West coast of the United States have been spotting. These items were among debris from the March 2011 tsunami in Japan. It's been estimated

科学美国人60秒 SSS 水下的统治者到底是谁

Sharks Rule the Reef's Underwater Food Chain Predators like wolves affect their ecosystems by eating their prey. But a more subtle impact involves fear. Predators also terrify prey species. And when, for example, elk are hiding, they don't spend as m