How do cocks determine the time when singing in the morning
How do cocks determine the time when singing in the morning
Every day at the same time on farms and inthe villages heard a roar of cocks. To find out what awakens these restless birds at such an early hour, the researchers are still trying. And each new zoologist answers this question in his own way, and everyone finds new evidence for his arguments.
Cock crowing has always served peopleway to follow the time, the first roosters played the role of a modern alarm clock, giving their owners a signal for awakening. It was their shout that the peasants expected to cross, go on the road. The second roosters announced that it was time for the peasants to milk the cows, knead the dough for bread and start their other household duties. And already under the cries of the third roosters the rest of the village woke up, accepting for its ordinary work.
Intimidation signal
By itself, the cock-crowing is a signal forpotential opponent, a way to designate the owner of the territory. In the natural habitat, all animals have their own specific site, where they feed and reproduce. To protect him and protect himself is the task posed to them by nature itself. Cruel battles, injuries received in them, and even more so the death of males fighting for their territory are bad for the population and harmful to the species. Roosters, known as bully, can solve these issues without bloodshed - simply intimidating others with a loud crow. The first crow is heard already at dawn - as soon as the rooster wakes up, he hastens to tell others about himself and his territorial rights. It is determined by biological clock, daily rhythm and peculiarities of the central nervous system of a bird. However, this does not answer the question of how the roosters determine time. The most common version for today is the location of the stars. In his book The World of Our Feelings, Leo Economov tells us that attempts by zoologists to connect the rooster's singing with the location of the stars led to surprising conclusions. It turned out that the first cock's trills begin to sound as soon as Canopus (a star from the constellation Kiel) lights up in the sky, and when it hides behind the horizon, the second cocks voice. The reasons why third roosters scream are still an unknown fact, as well as how these birds manage to navigate the stars, sitting in a closed henhouse. Attention of scientists
Italian scientists even conducted a specialThe study, aiming to determine whose biological clock works most accurately. To do this, for a week deep under the ground observed the behavior of several hens, roosters, rabbits and two dozen scientists. It is not surprising that the results of the experiment is the first scientists "have withdrawn" .Utrennih roosters were distributed as follows: - the first roosters - singing in the first hour of the night - the second cocks - singing in the second hour - others cocks - singing at four o'clock in the morning.
