Tiny Tweaks to Neurons Can Rewire Animal Motion

In March 2019, on a train headed southwest from Munich, the neuroscientist Maximilian Bothe adjusted his careful grip on the cooler in his lap. It didn’t contain his lunch. Inside was tissue from half a dozen rattlesnake spinal cords packed in ice — a special delivery for his new research adviser Boris Chagnaud, a behavioral neuroscientist based on the other side of the Alps. In his lab at the…

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