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An online resource devoted to North American insects, spiders and their kin, offering identification, images, and information.
http://bugguide.net/
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insects
bugs
reference
nature
science
taxonomy
photography
identification
biology
guide
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Comprehensive online encyclopedias of astronomy, math, physics, scientific biographies, and scientific books, with many equations and formulas.
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science
reference
physics
chemistry
math
education
encyclopedia
astronomy
mathematics
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The Tree of Life Web Project (ToL) is a collaborative effort of biologists and ... On more than 10,000 World Wide Web pages, the project provides information about ...
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biology
science
biodiversity
evolution
taxonomy
reference
nature
education
database
species
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No information avaiable
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biology
science
reference
data
numbers
statistics
bioinformatics
database
research
nature
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No information avaiable
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environment
plants
reference
invasive
weeds
gardening
biology
science
invasives
insects
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View the photo gallery dedicated to deep-sea and oceanic life. Find images of hydrothermal vent animals, deep-sea fish, invertebrates, and plankton, octopus and ...
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science
ocean
photography
nature
animals
photos
biology
photo
sea
marine
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Science lovers rejoice! We publish articles on a wide variety of science-related subjects including Chemistry, Biology, Environmental Science and Physics. Whether ...
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science
blog
news
education
technology
reference
physics
resources
nature
biology
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A national, nonprofit nature educational organization whose mission is to instill passion in children for the natural world. Named in honor of naturalist Roger Tory Peterson.
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science
nature
environment
wildlife
naturalist
kids
biology
education
insects
ecology
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No information avaiable
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birds
nature
reference
video
science
biology
animals
wildlife
ornithology
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No information avaiable
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photos
images
photography
reference
nature
plants
california
science
photo
botany
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NatureServe and its network of natural heritage programs serve as a source for information about rare and endangered species and threatened ecosystems.
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conservation
environment
science
ecology
nature
animals
biology
reference
biodiversity
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