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Reporter: Ahh! You scared me!
Elasmosaurus: Hello, I'm an Elasmosaurus.
Reporter: Wait. Are you a dinosaur?
Elasmosaurus: Nope. I'm a plesiosaur.
Plesiosaurs are reptiles that live in water.
Reporter: Your neck is so long!
Elasmosaurus: I'm ten meters long.
My neck is over half of my length.
And it has 72 bones.
Reporter: How do you use your neck?
Elasmosaurus: It helps me breathe when I swim.
And it helps me look for food.
Can I have that rock you're holding?
Reporter: Sure . . . Um, why did you swallow it?
Elasmosaurus: My teeth aren't good for chewing.
So I have to swallow food whole.
Rocks help grind food in my stomach.
Reporter: Oh. What do you eat?
Elasmosaurus: I eat fish and mollusks.
Reporter: What other creatures live here in the water?
Elasmosaurus: There are sharks, rays, turtles, and shellfish.
Other plesiosaurs live here too.
Reporter: Your flippers look like a sea turtle's.
Can you go on land?
Elasmosaurus: No. I can't use my flippers on land.
Reporter: What year is it?
Elasmosaurus: We are eighty million years before your time.
This is the Cretaceous period.
Uh-oh! I see a shark.
Reporter: Yikes! It's time to go.
Elasmosaurus: Good-bye, little reporter. Thanks for the rock!
Reporter: Good-bye, Elasmosaurus.