Grandma’s Tales: The Rooster and the Sun 

We all know that roosters crow before sunrise. But do you know why they start their chatter before all of us?

According to scientists, roosters have a mean circadian rhythm clock of 23.5 hours and thus start crowing just before sunrise. While the age-old popular belief is that roosters crow to signal the start of a new day and wake people up, some believe that they do so to communicate with other roosters.
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