How do dolphins sleep?
The question of how dolphins sleep, deserves special attention. The fact is that dolphins belong to the class of mammals, and all members of this class must sleep for a certain part of the day. Moreover, it is assumed that during deep sleep the animal is mainly in a state of immobility and loses control over its body. But such a dream is simply impossible for a dolphin. Dolphins must constantly rise to the surface to take their next breath of air.
Observations on these animals have shown that dolphins never remain in complete immobility, they constantly rise to the surface from time to time. So do they sleep at all?
Of course, the dolphins are sleeping. But unlike other mammals, including humans, dolphins during sleep do not turn off both hemispheres of the brain, but only one - the second one is awake, after which they change. Active - falls asleep, and the one that has already “slept” - carries its guard.Such a dream ensures the safety of the animal and body control, so that during deep sleep the dolphin can continue to breathe in the mode it needs.
How to choose furniture for the kitchen
For a free trip, the girl turned a small van into a cozy bedroom
Top 10 reasons to give up alcohol forever
Love horoscope for March 2018
What is the expected weather and temperature of the waters of Anapa in September 2017 - an accurate forecast for the days from the weather center
Letter F in pictures
Fashionable outerwear 2016, photo