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Expert-reviewed information about the Earth.  For everyone.

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    • 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 »

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      Jamaican dry forests is an ecoregion that covers a minority of the land area of the nation island of Jamaica, which ranks fifth among the Earth's islands in terms of endemic plant... More »

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Redwood Sorrel Last Updated on 2013-05-20 at 18:13 Redwood Sorrel (Oxalis oregana) Redwood Sorrel is in the Oxalidaceae, the wood sorrel family, a relatively small family with three genera and 875 species of mostly tropical... More »
Suez Canal, Egypt Last Updated on 2013-05-20 at 13:48 The Suez Canal is located in Egypt west of the Sinai Peninsula, connects Port Said on the Mediterranean Sea with the port of Suez on the Red Sea, and provides an essentially... More »
Strait of Hormuz Last Updated on 2013-05-20 at 13:48 Located between Oman and Iran, the Strait of Hormuz (26°34'0.00"N,  56°15'0.00"E) connects the Persian Gulf with the Gulf of Oman and the Arabian... More »
Dollar Value of Ecosystem Services Last Updated on 2013-05-20 at 05:42 The value of ecosystem services typically goes unaccounted for in business and policy decisions and in market prices. For commercial purposes, if ecosystem services are... More »
Biodiversity Glossary Last Updated on 2013-05-20 at 04:41 Introduction A biodiversity glossary is presented herein, to aid in understanding the many facets of a topic important to scientists, policy makers and the public.... More »
Estimation of adult human biomass Last Updated on 2013-05-20 at 04:30 The energy requirement of species at each trophic level is a function of the number of organisms and their average mass. The study estimates global human biomass, its... More »
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