Nests, Neurons, and the Evolution of Behavior. How and Why Do Brain Cells Die? Biology 

Nests, Neurons, and the Evolution of Behavior

By Emily Willoughby @eawilloughby Evolution is a beautiful thing. We tend to appreciate its elegance and creative productivity most when looking backward into deep time: in our distant ancestors, in dinosaurs, and in entire strange lineages that rose and fell before humanity. To most of us, evolution is a thing that happened so long ago that it has no practical relevance to our lives today. We see its results in the bodies of living things and the relationships among them—and these results, in all their wonder, seem static, like final…

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