How Do You Sleep, Baby Dolphin?

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They also have periods of deep sleep floating at the surface of the water like a log. This is known as logging. Normal human respiration is about 12 to 20 breaths per minute.

Dolphins Sleep Half a Brain at a Time | HowStuffWorks

Each dolphin breath is bigger than ours and their red blood cells carry more oxygen, so they don't need to breathe as often. Bottlenose dolphins, for example, can stay underwater for up to 10 minutes.

Young dolphins or calves eat and sleep while their mothers " carry " them directly behind in their slipstream, also known as the wake, which moves the calf at the same speed as the mother, requiring less energy from the calf. Mom can't stop swimming the first few weeks of a baby dolphin's life, otherwise it will sink and drown because it doesn't have enough body fat to float.

Good thing mom's able to sleep on the move.

For Starters, Half Their Brain at a Time

July 3, Mothers of newborn babies often complain that they don't get enough sleep. Human babies may sleep for up to 16 hours each day, but most babies sleep for only short periods at one time. Mothers must feed the baby and change the baby's diapers frequently -- sometimes several times during the night.

Not to worryshut-eye comes easily to these aquatic mammals (1:01)

Because the schedules of the baby and mother do not match, the mother may end up deprived of sleep. At least human mothers get some sleep.

Relaxing Music for Stress Relief. Dolphin singing. Soothing Music for Meditation, Therapy, Sleep

The mothers of newborn dolphins and orcas also called "killer whales" get almost NO sleep for several weeks after their calves are born. The calves themselves don't sleep at all!

Newborn dolphins go a month without sleep

Researchers in the United States and Russia studied two captive killer whale Orcinus orca mothers and their calves and four captive dolphin Tursiops truncatus mothers and their calves. The scientists recorded how much time the animals spent floating on the surface of the water or lying on the bottom of their pools. These behaviors were considered to be periods of sleep.

Usually, adult orcas spend between five and eight hours sleeping each day. For all the latest ABC Science content click here. Site Navigation Video Audio Photos. Share Print News in Science Baby dolphins never sleep Thursday, 30 June Reuters Dolphins and killer whales have different sleeping habits to other mammals.

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