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Journey through the story of human evolution in a multimedia documentary experience.
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Online activities for learning biology, including animated cartoons, an evolution simulation laboratory.
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Online activities, labs and tutorials. Site available in Spanish.
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The complete nature and wildlife resource featuring the Audubon Guides to plants and animals, outdoor planner.
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Information on North American animals and plants with illustrations, text, activities, and access to a naturalist.
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Facts, in-depth articles, ask-a-scientist forum, archive of answers and newsletter on oceans and ocean life.
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Interactive GCSE Biology website. Some of the topics that it covers are cells, photosynthesis, the nervous system and homeostasis.
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Enter the world of Science Bob to try home experiments, visit his on-line lab and get answers to your science questions.
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Describes microbiology, the rain forest and the possibility of extraterrestrial life.
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A Natural Science reference site for middle school students.
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