NatureServe Explorer: An Online Encyclopedia ...
Source for authoritative conservation information on more than 50,000 plants, animals, and ecological communities of the United States and Canada.
http://www.natureserve.org/explorer/
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Invasive and Exotic Insects, Diseases, and Weeds: Information and Images
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ScienceWorld
Comprehensive online encyclopedias of astronomy, math, physics, scientific biographies, and scientific books, with many equations and formulas.
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Integrated Taxonomic Information System
Page designed through the cooperative efforts of interagency ITIS Teams. ... Privacy statement and disclaimers. http://www.itis.gov/index.html ...
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Animals - Critters, Creatures, Wildlife, Pets | LiveScience
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BioImages - Virtual Fieldguide (UK)
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Society for Conservation Biology (SCB)
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IUCN - The World Conservation Union
A union of governments, government agencies, and non-governmental organisations working at the field and policy levels, together with scientists and experts, to ...
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Welcome! | Butterflies and Moths of North America
Searchable database of records in the United States and Mexico. ... This site includes dynamic distribution maps, photographs, species accounts, and ...
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HowStuffWorks - Learn how Everything Works!
Series of articles that explore the workings of electronics, computers, autos, finances, health, and scientific and social phenomena.
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20 Strange, Rare and Exotic Endangered Species | WebEcoist
Strange and bizarre endangered animal species: mexican walking fish, coconut crab, giant salamander, bird eating spider, komodo, glass frog, kagu and more.
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