MARINE mammals such as dolphins spend their entire lives at sea. As cute as bottlenose dolphins may appear to us, they are not cute to fish like mullets.
Small fish see dolphins as giant monsters that want to eat them. Adult male dolphins, which generally travel in pairs, often swim slowly side by side as they sleep.
[ihc-hide-content ihc_mb_type=”show” ihc_mb_who=”2,3″ ihc_mb_template=”1″ ]
Dolphins sleep by resting half of their brain at a time. This is unusual form of sleep called unihemispheric slow-wave sleep.
The brain waves of captive dolphins that are sleeping show that one side of the dolphin’s brain is “awake” while the other is in a deep sleep.
Interestingly during this time, the eye opposite the sleeping half of the brain is open while the other eye is closed.
[/ihc-hide-content]
