Some dinosaurs were smaller than a chicken.
Not all dinosaurs were huge. A few were tiny and could fit right in your hands.
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Many scientists think birds are the cousins of dinosaurs.
Triceratops had three horns on its face and a big bony frill.
Some plant-eating dinosaurs swallowed stones to help grind up food.
Stegosaurus had rows of bony plates along its back.
Argentinosaurus was one of the biggest dinosaurs that ever lived.