They could, but the top of them would start to dry up.
Most fish always have to stay in water. Dolphins come up to the ocean surface for a breath of hair. Dolphins breathe through their blowhole.
yes dolphins can stay up long because they are like mamals
Stay Up Forever was created on 2007-08-13.
Whenever dolphins need to get air they temporarily swim at the surface of the water. Baby Dolphins when born are pulled up to the surface so they don't drown.
Dolphins can swim up to 260 miles below the surface.
to get air
Dolphins live in the earth's warm ocean water. They have to stay somewhat close to the surface to be able to come up for air every 20 to 30 minutes.
Forever
Dolphins come up to the surface to breathe.
When they need air or just to play sometimes. If it is in an aquarium, they are trained to a whistle and hand commands (movements).
Dolphins and Whales can stay under water for so long is because they have blowholes to come to the surface and get air. They can stay under water for quite a while before they need another breath at the surface:) Need more help... Just ask!!!!!!!!!!!!!!
Dolphins, being mammals, swim near the surface of the ocean where they can come up for air regularly.