Why does the rooster crow? When does the rooster usually crow-

In ancient times, roosters were usually regarded as an important method of timing. The cock crows usually because the biological clock in the body is working. So, why does the rooster crow?

Why can the rooster announce the dawn?

Ant Manor 65438+ 10 9 Answer Analysis: Hormones in the brain are very sensitive to light.

Many scientists have done research, and they found that not only chickens, but also many creatures have something similar to a clock, called a biological clock, which can tell the time and make them wake up and want to sleep when the time comes. The cock's biological clock is particularly sensitive to light. Every day when the sky is slightly brighter, it will feel a special kind of light wave, so it cries "oh-oh-". Hens don't crow like cocks, because they have no biological clock and different vocal organs. In the morning, when a rooster crows, there will be many roosters crowing. It is because of their sound and punctuality that people associate this phenomenon with daily life, which is called rooster crowing, and use them to grasp the time.

When does the rooster usually crow?

In ancient China, cock crow was an important time-keeping method among the people.

Farmers often get up at the cock crow and start a hard day's work.

There are also many historical allusions, such as smelling chickens dancing, which are a true portrayal of ancient people telling the time with roosters.

At present, most roosters crow around four or five in the morning, but a few roosters don't crow until seven or eight.

Some roosters even crow at one or two in the middle of the night.

So when the rooster crows is actually a very uncertain factor. Just like when people get up, although there is a rough time, there are still individual differences.

Since the time of crowing is varied, is there a difference between the time of crowing in ancient and modern times?

There must be, so it is not allowed to calculate what the ancient rooster crows represent, just according to the rooster's schedule.

In the allusion of the smell of chicken dancing, the chicken crowed very early, so this word is often used to describe people who work hard.

There is an ancient poem called "Night Lights and Five Watches Chicken", which means that a rooster can crow at five watches.

In ancient times, people divided the night into five time periods, namely, five classes, and one class was usually two hours.

Calculated, the first duty is from 7 pm to 9 pm, the second duty is from 9 pm to 1 1 pm, the third duty is from 1 1 pm to the next morning 1 pm, and the fourth duty is from 1 pm to 3 am.

So we can roughly calculate that the rooster crowed in ancient times, basically between 3 am and 5 am, which is really early.