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    • Coral diseases Featured Article Coral diseases Coral diseases

      Coral diseases and diseases to other reef organisms are having significant, negative impacts on the structure, functioning and appearance of coral reefs. The number,... More »

    • Argon Featured Article Argon Argon

      Argon is a chemical element designated by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of the periodic table (noble gases). Argon is present... More »

    • Iran Featured Article Iran Iran

      Iran is a nation of over 78 million people in the Middle East, bordering the Gulf of Oman, the Persian Gulf, and the Caspian Sea, between Iraq and Pakistan Its major... More »

    • DNA Featured Article DNA DNA

      Deoxyribonucleic acid (DNA) is a long chain organic molecule that contains the coding for all metabolic and reproductive processes of all living organisms, save for certain... More »

    • Measuring personal environmental exposures Featured Article Measuring personal environmental exposures Measuring personal environmental exposures

      Increasingly, tools and methodologies have begun to emerge that hold promise for capturing information about at least some of the environmental exposures that an individual may...

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    • Flora of Napa County, California Featured Article Flora of Napa County, California Flora of Napa County, California

      Napa County is a small county in northern California encompassing nearly 500,000 acres (200,000 hectares), about 0.5 % of the landmass of the state. It is located 25 miles (40... More »

    • Benthos Featured Article Benthos Benthos

      Benthos is one of three major ecological groups into which marine organisms are divided, the other two being the nekton and the plankton. The benthos are organisms and... More »

    • Sea turtle migration clarified Featured News Sea turtle migration clarified Sea turtle migration clarified

      New insights by researchers reveal how young loggerhead sea turtles stay on course during one of the longest and most spectacular migrations on Earth. Questions About... More »

    • Mutation Featured Article Mutation Mutation

      A mutation is an alteration of the genomic sequence of DNA molecules. Mutations may cause altered function in the affected organism, or may cause alteration of inherited traits of... More »

Recently Updated
Iceland Last Updated on 2012-05-18 at 08:38 Iceland is an island nation of 311,000 people in northern Europe, between the Greenland Sea and the North Atlantic Ocean, northwest of the United Kingdom, its northern edge... More »
Cyprus Last Updated on 2012-05-18 at 07:51 Cyprus is a divided island nation of about 1.1 million people in the Mediterranean Sea, south of Turkey. It is the third largest island in the Mediterranean Sea (after Sicily... More »
Czech Republic Last Updated on 2012-05-18 at 07:48 The Czech Republic is a landlocked nation of just over ten million people in central Europe, between Germany, Poland, Slovakia, and Austria. Its major environmental issues... More »
Oak Last Updated on 2012-05-17 at 18:44 Oaks are trees and shrubs in the Fagaceae family, which also includes beeches, chestnuts, and chinquapins. The genus of oaks, with the scientific name Quercus, is broadly... More »
Trophic level Last Updated on 2012-05-17 at 17:24 A trophic level is a set of species occupying one level of the ecological food chain. The lowest trophic level, Level 1, is that set of organisms that can manufacture their... More »
Cuba Last Updated on 2012-05-17 at 14:29 Cuba is an island nation of eleven million people in the Caribbean Basin. It consists of the island of Cuba, the Isla de la Juventud, and several archipelagos. It is the most... More »
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