Physicists have discovered that starling flocks may be violating Newton's third law of motion, forcing a rethink of how classical physics applies to living systems. Bumble bees with brains tinier than a sesame seed have solved a tool-use puzzle originally designed for primates, with some bees learning just by watching others. Researchers are sounding the alarm about 'nutritional dark matter' — thousands of hidden chemicals in everyday food that could explain wildly different health outcomes between people eating identical diets. A newly identified sensory pathway linking fine body hair to chronic itch could finally open doors to treatments for millions of sufferers. Plus, a major warning has emerged about a widely used blood pressure drug and kidney disease, and chronic wasting disease is spreading silently in ways that have scientists watching closely.
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