Book 5, Question 12 · Video
Munch Munch! Why Did Plant-Eaters Have Beaks or Grinders?
Plants can be tough to eat, so plant-eating dinosaurs had special tools. Some had beaks for snipping leaves and stems. Others had lots of flat teeth for grinding plants into smalle
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What Crafty Clover says in this video
Intro
Hi! I'm Crafty Clover! Let's discover something amazing. Why did plant-eaters have beaks or grinding teeth?
The Big Idea
Plants are tough to eat. Leaves and stems take a lot of chewing. Plant-eating dinosaurs had a beak to clip plants, and many had rows of flat teeth to grind them into mush. It was like scissors up front and a mill in the back!
The Beak Clips
Step one: the beak clips. Many plant-eaters had a hard beak at the front of the mouth. It snipped off leaves and stems, a bit like scissors. Then the food went back into the mouth.
The Teeth Grind
Step two: the teeth grind. Duck-billed dinosaurs had hundreds of flat teeth packed in tight rows. They worked like a millstone that grinds grain. Leaves turned into mash that was easy to swallow.
New Teeth Rise
Step three: new teeth rise up. All that grinding wore the teeth down. But new teeth kept growing up underneath to take their place. It was like a grater that fixes itself.
A Closer Look
Let's take a closer look at a plant-eater's mouth! A beak clips off the plants. Rows of flat teeth grind them up. And new teeth are always growing in below.
Quick Facts
Quick facts! At a museum, you can compare a cow's jaw with a dinosaur's jaw. Please do not chew rocks to be a dinosaur. Tooth shape is a clue about diet, and it does not tell us about personality. Leave park fossils right where they sit.
Think Like a Scientist
Now, think like a scientist! Why would a leaf need grinding, but meat need slicing? What would worn-flat teeth tell you? How could a beak and a set of grinding teeth work as a team? Try it with a snack. Bite a carrot, then chew it. What did each part do?
Outro
Beaks and grinding teeth turned tough plants into energy. Keep exploring! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!