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Readers Respond to the January 2020 Issue

Scientific American May 2020 Letters to the editor from the January 2020 issue of Scientific American BRAIN EXERCISES In devising recommendations for exercise regimens to enhance cognition in healthy individuals and those experiencing cognitive decline, as discussed by David A. Raichlen and Gene E. Alexander [“Why Your Brain Needs Exercise”], scientists would do well to talk to […]

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Tapirs Help Reforestation Via Defecation

The Amazon rainforest is under threat. Fragmentation, fires, and climate change are just a few of the hazards. In natural, intact forests, animals that eat fruits help to keep the forest in a constant state of regeneration since they deposit seeds in their droppings as they travel. Could the same process help restore areas degraded […]