The cock crows in the morning. Is this a physiological reaction or an instinct? Will it crow at other times?

Cock crowing is mainly regulated by internal biology and influenced by external environment. Both animals and humans have biological clocks, and the cock's biological clock is directly related to the light intensity. At four in the morning, the sky is getting brighter and brighter. Roosters can feel and receive light better than other animals. When they feel relaxed, they begin to sing. The period from three to four in the morning is usually called dawn, which is the origin of the so-called "golden rooster". In addition to the biological clock, cock crowing is also related to the production of melatonin in the body.

Cocks, birds and all kinds of animals around the world mainly use calls to convey information. Cock crowing is also a means of courting hens, which attracts the attention of hens through sound and then mates with them, thus achieving the purpose of courtship. In addition, roosters are territorial and aggressive animals. They will crow and warn other cocks not to enter their territory, or they will be treated badly. Therefore, roosters don't crow just before dawn.

Because when the sun rises, the light turns from dark to bright, and the rooster responds to the stimulation of the light. But some people think that the cock crows not because it is stimulated by light, but because it knows when the morning will come, that is, it has a sense of time and rings like an alarm clock. The biological clocks of humans and other animals are a group of genes and protein, which work together to form a 24-hour rhythm, affecting physiological changes such as body temperature, pulse, blood pressure and hormone secretion over time. It is a biological instinct for a rooster to crow in the morning.

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