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Early bird, night owl or something else? Five patterns may define how we sleep
Early Bird or Night Owl? New Study Finds It Might Not Be So Simple - Uncovers 5 Distinct Sleeper Types
Night owl or early bird? Study finds sleep categories aren’t that simple - EurekAlert!
The Early Bird Got the Cicada, Then an Evolutionary Air War Started
Dinosaur or Early Bird? 210-Million-Year-Old Southern African Footprints Fuel Scientific Debate
