Often say "I woke up with turkeys", or awakened kaposhi sleep. But did know why turkey Kokoshi or këndesi a kaposhi, as known by other terms wakes before dawn?
This was the object of study of the University of Nagoya, Japan, who advanced in a real experiment to discover the secret of waking up early in the morning kaposhit!
Thus, they can find the answer some questions, how crows understands that dawn is coming?
You understand that by sunset, or knows very well the clock?
So scientists decided on a turkeys room where the lights were poor for 24 hours. All turkeys and "kikirikitë" they sang were recorded for a month, with specific devices and specific. Finally, analysis of the data collected showed that even when there are no external influences that indicate the coming of dawn, turkeys continued in the same manner before dawn as before.
The conclusion is that the song kikirikiki obey the so-called circadian rhythm, a cycle of 24 hours that dictates the biological clock in the brain to synchronize physiological functions in the day-night cycle. But over the course of days, there was a small disorder, very easy for turkeys, an indicator that the biological clock is based on external factors to keep the right pace. The study is published in the journal "Current Biology".
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