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Learn how people have been driving species to extinction since the Stone Age in a new column by Erin Wayman.
LIFE
Wild insects are a key to bigger harvests. See “Native pollinators boost crop yields worldwide.”
SCIENCE & SOCIETY
By tracking tweets, researchers identify communities. Read “Twitter maps New York City, language by language.”
BODY & BRAIN
In developing rat and monkey brains, cells called microglia prune excess growth. See “Immune cells chow down on living brain.”
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