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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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Consciousness and Behavior

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

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The Evolutionary Development of Multicellular Organisms

Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..

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This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..

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The Water Cycle

The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..

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The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..