Expert-reviewed information about the Earth. For everyone.
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Featured Article
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 »
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Featured Article
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 »
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Featured Article
Lake Urmia
Lake Urmia is a shallow perennial inland salt water body in northwestern Iran. This lake is the second largest in the Middle East, measuring roughly 5000 square kilometers in... More »
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Featured News
Census of Emperor Penguins
Scientists describe how they used Very High Resolution satellite images to estimate the number of penguins at each colony around the coastline of Antarctica. Scientists... More »
The critically endangered dusky gopher frog, Rana...
Last Updated on 2012-05-15 at 23:43
Introduction
Amphibian species worldwide are in rapid decline. One of the most common reasons for this decline is the spread of the chytrid fungus. The dusky gopher frog... More »
Chile
Last Updated on 2012-05-15 at 21:40
Chile is a nation of seventeen million people in South America, bordering the South Pacific Ocean, between Argentina and Peru.
The country of Chile encompasses an extensive... More »
Countries and Regions of the World Collection
Last Updated on 2012-05-15 at 20:57
The following is a list of countries and regions of the world. The 195 nations that are generally recognzed are numbered. Areas or regions that do not... More »
Limpopo River
Last Updated on 2012-05-15 at 17:26
The Limpopo River is one of the great rivers of southern Africa, with a [catchment] basin of approximately 410,000 square kilometers. The human population in the Limpopo Basin... More »
Highveld grasslands
Last Updated on 2012-05-15 at 17:24
Highveld grasslands cover a large portion of west-central South Africa. Grasslands all over the world have experienced dramatic habitat destruction as a result of anthropogenic... More »
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