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Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..

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Human consciousness and behavior are an interesting topic since they are determined and controlled by the brain. Conscio..

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The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..

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This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..

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Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..