Interesting discovery of special sleep of dolphins

Unlike terrestrial mammals, dolphins only sleep with half their brains while the other half is awake. Therefore, they are able to stay awake for more than two weeks. This extremely special 'sleep' helps them avoid possible uncertainties when sleeping, especially the stalking of the enemy.

'After staying awake for hours or at most a few days, people and other animals are forced to stop all activities to go to bed,' said Brian Branstetter, a marine biologist at the Mammal Fund. American ocean ocean in San Diego said. 'However, this concept does not exist with dolphins because if so, they are likely to drown or become good prey for some species like sharks'.

According to experts, dolphins are capable of echolocation, a sonar biological form (sound or ultrasonic locating system). They will make sounds and listen to echoes to explore the surroundings which are very dark.

Mobile floating camp simulation model. (Photo: Brian Branstetter)

Conducting research on two dolphins, the team of scientists created a floating floating camp containing 8 parts, each consisting of a sound projector and microphone under water. Usually, the dolphin body can emit clicks. These sound waves reach the object and are reflected back to where it started. They will react based on that sound. Basically, eight portions of floating camp serve as 'virtual steles' simulating the sound of the object.

The results showed that both animals used echolocation with near-perfect accuracy and showed no signs of performance degradation within 15 days. It is also not known how long dolphins can continue like this for a long time. This requires further research on all their activities through the application of electroencephalogram (EEG), Branstetter said.

Detailed findings have been published in PLoS ONE magazine on October 17.

Reference: Livescience