Dolphin's actually have a unique way of sleeping; they sleep with one half of their brain at a time while the other have controls their swimming and breathing. Once one half of the brain gets the amount of sleep it needs, it switches and the other half of the brain sleeps while the newly rested half takes over control of breathing and swimming. Very interesting stuff that I learned in Biopsychology recently.
No. They're are too big to.
In water
Yes.
Whales and dolphins can't communicate under water
they sleep and like the tropical water
swim.
Under it
They dont have one, they live under water, but i dont know where they sleep as they are mammals and have to breach every few hours for air.
How stupid are u they eat sleep excreet and mate in water :L
They sleep under water.
No, whales do not sleep upside down. They typically sleep by resting one half of their brain at a time while remaining upright in the water. This allows them to continue breathing and be aware of their surroundings.
Whales and Dolphins are born under water and aren't fish.