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Do you see animals or people first?
American people aren't the only ones getting bigger—American pets are also putting on pounds
In the retina, there are two types of light receptor cells: Rods are sensitive to differences in lig
Brain metabolism in a schizophrenic individual (left) and a normal individual (right). These scans o
A lesion called a plaque in the brain of an individual with Alzheimer disease. A ring of degeneratin
Remote satellite monitoring of gross primary productivity across the United States. The differences