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www.nationalgeographic.com | ||
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www.livescience.com
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| | | | | Coral reefs are large underwater structures composed of the skeletons of coral, which are marine invertebrate animals. Corals are found all over the world's oceans. | |
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coast.noaa.gov
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| | | | | NOAA's Office for Coastal Management provides the technology, information, and management strategies used by local, state, and national organizations to address complex coastal issues. | |
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www.epa.gov
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| | | | | Coral reefs are among the most biologically diverse and valuable ecosystems on Earth. This web site describes the importance of coral reefs, threats to them, and ongoing efforts to protect them. | |
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www.space.com
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| | | Astronomers have discovered the smallest dwarf galaxy ever seen. It is a mystery how the satellite galaxy of Andromeda survived the blistering conditions of the early universe. | ||