2.3K views · 66 reactions | Did you know dolphins sleep while swimming? Unlike humans, dolphins are conscious breathers they must actively come to the surface for air. To rest safely, they enter a state called “unihemispheric slow wave sleep”, where one half of their brain stays awake while the other sleeps. This remarkable adaptation allows them to continue swimming, breathing, and staying alert to danger even while resting. | Oceana Canada | Facebook