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Book 31, Question 90 · Video

Why do roosters crow in the morning?

Video · 1:49 · Crafty Clover explains, from A Million Whys Book 31

Roosters have an internal body clock. In experiments, roosters kept in steady dim light still crowed at the same time each morning, about when the sun would be coming up. A crow also lets other roosters know where he is, and nearby roosters often answer. The loudest, highest-ranking rooster in a flock tends to crow first. Light and sounds from the rest of the farm can also set them off.

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What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do roosters crow in the morning?

The Big Idea

Cock-a-doodle-doo! Roosters are famous for morning crowing. Why do they crow in the morning?

A Body Clock

Step one: A Body Clock. Roosters have an internal body clock. In experiments, roosters kept in steady dim light still crowed each morning, about when the sun would be coming up.

I'm Here!

Step two: I'm Here!. A crow lets other roosters know where he is. Nearby roosters often answer back.

Who Goes First

Step three: Who Goes First. The loudest, highest-ranking rooster in a flock tends to crow first. Light and sounds from the rest of the farm can also set them off.

A Closer Look

Let's take a closer look! Keeps time. Here I am. Crows first. Can trigger it.

Quick Facts

Quick facts! Roosters also crow during the day, not only at dawn. Their body clocks work even in dim light. Top roosters crow first. Roosters answer each other.

Think Like a Scientist

Now, think like a scientist! On a day off, guess what time you woke up before checking a clock. Write your guess down. Then check the real clock. Try it for three days. How good is your body clock?

Outro

Roosters have an internal body clock that makes them crow around sunrise, even in dim light. Crowing tells other roosters where they are, the top rooster usually goes first, and they crow during the day too. Science is amazing! Keep asking questions! The more you look around, the more wonders you will find, so keep your eyes open! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

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