they don't even sleep at all they rest half the side of their brians, every throw hows it would change sides. mammals have to stay awake to breath
It means you have one eye open. If you mean the idiom "sleep with one eye open," it means that you are staying alert at all times in case of disaster.
NO their eye will dry out!
goldfish sleep with their eye open their eye are open all the time. Gold fish sleep with there eyes open...But they have a clear lid that over laps there eyes in which they see out of so there eyes are closed they just have a different lid then humans. Hope that helps you:)
At night dolphins will sleep with one eye open close to the surface so that they can breathe when they need oxygen. They leave one eye open so that they can look out for danger while they rest one half of their brain. During the night they will alternate which eye they have open.
yes
yes
It is not possible for humans to sleep with one eye open and one eye closed simultaneously. The brain requires both eyes to be closed in order to enter the deep stages of sleep.
i know dolphins do but that's all i can think of at the time
they can sleep long with one eye open -they'll drown if both are closed also their eye is open to sense danger or they'll die.
I believe a shark sleeps with one eye open.
Sleep with one eye open
every dolphin sleeps with one eye open.