Can insect sleep?

Sleep is an integral part of our life, critical for the body. We know for sure that the person and animals need a dream. But when a look falls on a buzzing buzzing on the window glass, we are no longer so sure and often ask ourselves the question "sleep insects or not?".

Yes, insects also need to sleep! The main "culprits" of sleep in insects is the presence of a central nervous system. Of course, this does not mean that bedroom flies, before that, flying around the house, suddenly falls on the barrel and falls on six hours. Her dream will look a little different: some time insect will simply sit on the table, wall or even on the ceiling. And you will not even think that at this time the little bug sleeps.

The fact is that every living creature has a dream in different ways: a person, for example, can sleep only lying, the giraffes and elephants sleep standing, and the bats are at all at all. In addition, the duration of sleep for all living beings is completely different: the same giraffe sleeps only 2 hours a day, and the bat - all 20. In the insects, the duration of sleep varies too - from a few minutes to several hours, while the same fly can sleep Although on the wall or ceiling. But there is something that combines the sleep of all living beings is a slower reaction to external stimuli.

If scientists have the opportunity to connect brain activity sensors and determine when the creature is sleeping, then in the case of insects it remains only to monitor their behavior and reaction to the external effect. It is so two independent groups of scientists from the Neurology Institute in California and the University of Pennsylvania proved that insects can also sleep.

The experiment was carried out on the fruit flyers and was that overnight, one container with insects were constantly shaking, not letting the fly to sit still. Another container was not affected, and insects led the usual way of life. After a sleepless night, scientists finally left the first container alone, and the fleets inside immediately reduced activity at the same time. At the same time, when the banks are shocked, the insects were not immediately reacted, but with some delay - as if the sleeping person was shaking his shoulder, he would not immediately wake up.

These results were obtained immediately in two independent studies and repeatedly repeated to eliminate the likelihood of coincidence. Moreover, in a detailed study, specialists noticed that the duration of sleep in the fleet depends on the age: young individuals sleep less than old. For the sake of interest, scientists even spray caffeine in a container and they were surprised that he acts in the same way as on the fruit flies, forcing the people to be awake longer.

And here the bees are sleeping. According to the author of the video, this Anthidium Punctatum bee for a long time remained fixed (slept), grabbing the braivers with his jaws.

In the future, such experiments were carried out not only on fruit flyers, but also on other insects (for example, bees), and they all confirmed that insects can sleep.

Photographer Miroslaw Swietek received these unique insect snapshots in the morning clock. At this time, insects are covered with morning dew, but are in a dream, so they can be easily photographed, bringing the camera lens as close as possible. True, according to Miroslav, finding them wet grass is incredibly difficult.

Sources:

http://www.popsci.com/blog-network/our-modern-plagues/do-insects-sleep