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A scientist nibbled away at Sen. Rand Paul on Friday after the Kentucky Republican blasted his research on schools of fish as wasteful federal spending.

“He got the funding wrong and the species wrong, and he misrepresents the work we’ve done,” Princeton science professor Iain Couzin told POLITICO. “He’s done some serious cherry-picking here. That’s one study, we’ve had a series of studies that have taken many years.”