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Yes. All creatures must sleep. The dolphin can sleep, move and breath at the same time.
They do this by allowing only half of their brain to shut down. They often can get about 8 hours of sleep. They can accomplish this three ways. They can slowly cruise at the surface of the water taking breaths, they can rest at the bottom of a shallow area rising to the surface to get a breath or they can simply rest on the surface. Dolphins do sleep, but in a very unique way. One half of the brain dozes off, whilest the other is still awake (looking out for predators) then vice versa (happens to the the other side) Hope it helps =)
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoYes, but dolphins have to be conscious to breath. This means that they cannot go into a full deep sleep, because then they would suffocate. Dolphins have "solved" that by letting one half of their brain sleep at a time. This has been determined by doing EEG studies on dolphins. Dolphins sleep about 8 hours a day.
Wiki User
∙ 11y agoGenerally, dolphins sleep with only one brain hemisphere in slow waves at a time, thus maintaining enough consciousness to breathe and to watch for possible predators and other threats. Earlier sleep stages can occur simultaneously in both hemispheres. In captivity, dolphins seemingly enter a fully asleep state where both eyes are closed and there is no response to mild external stimuli. In this case, respiration is automatic; a tail kick reflex keeps the blowhole above the water if necessary. Anesthetized dolphins initially show a tail kick reflex. Though a similar state has been observed with wild sperm whales it is not known if dolphins in the wild reach this state. The Indus river dolphin has a sleep method that is different from that of other dolphin species. Living in water with strong currents and potentially dangerous floating debris, it must swim continuously to avoid injury. As a result, this species sleeps in very short bursts which last between 4 and 60 seconds.
Wiki User
∙ 13y agodolphins are day animals .at night they sleep with one eye open to watch for prey and predators.
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Are dolphins diurnal or nocturnal?
neither...if it were to fall asleep, it would die
Do bottlenose dolphins sleep at night or day?
Neither actually, they take 10-30 minute periods throughout the day in which half of their brain is asleep for.
When do dolphins go to sleep and wake up?
They sleep in at night and wake up in the morning.
Are bottlenose dolphins nocturnal?
A dolphin is not nocturnal... Dolphins sleep with one half of their brain plus one eye closed, then switching to the other side of the brain and the other eye closed during other parts of the day -- slowing down everything inside their bodies and moving...in other words are not nocturnal, they hunt during the day and sleep during the night...like humans.
Where do dolphins sleep night?
I don't know maybe in the OCEAN!
Do jellyfish sleep at day or night?
They Sleep at Night.
What time of the day do bottle nose dolphins sleep?
They don't ever sleep they swim all day
Does tiger sleep at night or day?
Tigers sleep all night, and part of the day.
Do clown fish sleep day or night?
they sleep at night
Do elephant sleep during night or day?
Generally they sleep at night
Does a mongoose sleep day or night?
it comes out at day
Do cats sleep day or night?
Yes. They sleep frequently at all times of the day or night.
