Why Do Cheetahs Have Tear-Mark Lines?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do cheetahs have tear-mark lines?

The Big Idea

Cheetahs have tear-mark lines because those dark stripes may work like sunglasses! The lines run from the inside corner of each eye down to the mouth. Scientists think they help the cat see better in bright sunlight.

Dark Lines

Step one: dark lines. A cheetah has dark lines, called tear marks, that run from the inside corner of each eye down to its mouth. No other big cat has marks quite like them.

Glare Fighters

Step two: glare fighters. Scientists think they work like the black eye paint that athletes wear. The dark color soaks up glare from the bright sun.

Clear Vision

Step three: clear vision. That helps the cat see its prey clearly. It helps when the cheetah needs to aim for a chase across open grassland in daylight.

A Closer Look

Let's take a closer look! Look at the cheetah's eyes. The dark tear marks run down from each eye. They help with the glare from the bright sun. That makes it easier to see across the grassland. Sunglasses made by nature.

Quick Facts

Quick facts! The tear marks may also help cheetahs look fierce. Cheetahs are the fastest land animals, running up to about 60 miles an hour. They hunt in the day, when it is bright. Cheetahs are wild, so only watch them from far away.

Think Like a Scientist

Now, think like a scientist! Squint at a bright window with your hand held above your eyes like a visor. Then look again without your hand. Which way glares less? How is that like the dark marks under a cheetah's eyes?

Outro

Cheetahs have built-in sunglasses on their faces. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!