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Book 11, Question 38 · Video

Why Do Deer Flash White Tails?

Video · 1:45 · Crafty Clover explains, from A Million Whys Book 11

A white-tailed deer flashes its tail to send a warning! When danger is near, it raises its tail and shows the bright white underside. The whole group knows to run.

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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 deer flash white tails?

The Big Idea

A white-tailed deer flashes its tail to send a warning! When danger is near, it raises its tail and shows the bright white underside. The whole group knows to run.

Raise the Flag

Step one: lift the tail. When a white-tailed deer runs, it raises its tail to show the bright white underside. A raised tail looks like a waving flag in the forest.

Warn the Group

Step two: warn the others. The white flash is easy to see in the woods, even from far away. It tells other deer that danger is near, so the whole group knows to flee.

Show You Were Seen

Step three: send a message. The flash might also show a predator that it has been spotted. That can end the chase, and when the danger is gone, the tail goes down.

A Closer Look

Let's take a closer look! Most of the time, the tail looks brown. When alarmed, the white underside flashes. Other deer in the group see it right away. Then they all run together.

Quick Facts

Quick facts! The white-tailed deer is named for this white flag. Fawns have white spots to hide in the forest shade. Deer can run fast and leap high fences. If you see deer, stay back and watch quietly.

Think Like a Scientist

Now, think like a scientist! Invent a silent signal to warn your family of danger, using only a hand motion. Try it at a distance, across a room. Can the others understand it? What makes a signal easy to see?

Outro

A white tail flash is a silent warning. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

Why I wrote this