Meat-eaters had
        
        
          sharp claws.
        
        
          No. They are related, but the two groups are different.
        
        
          
            What is a dinosaur?
          
        
        
          
            Clue in the claws
          
        
        
          Meat-eating dinosaurs were
        
        
          known as theropods, which
        
        
          means “beast-footed”, because
        
        
          they had sharp, hooked claws
        
        
          on their toes. Plant-eating
        
        
          dinosaurs tended to have
        
        
          blunt hooves
        
        
          or toenails.
        
        
          
            Walking tall
          
        
        
          Dinosaurs
        
        
          walked on
        
        
          their toes
        
        
          with their legs
        
        
          directly under
        
        
          their bodies.
        
        
          
            Egg layers
          
        
        
          All dinosaurs
        
        
          laid eggs – some
        
        
          in nests, just as birds do today.
        
        
          The baby developed in the egg until
        
        
          it was ready to hatch. About 40 kinds
        
        
          of dinosaur eggs have been discovered.
        
        
          
            Skull holes
          
        
        
          Dinosaur
        
        
          skulls had
        
        
          large holes,
        
        
          or “windows”. These made them
        
        
          lighter, which was necessary
        
        
          as some of the largest skulls
        
        
          were almost as long as a car.
        
        
          Plant-eaters
        
        
          had blunt
        
        
          toenails.
        
        
          
            Dinosaurs
          
        
        
          walked
        
        
          on upright,
        
        
          pillar-like legs.
        
        
          
            Crocodiles
          
        
        
          stand
        
        
          with their knees
        
        
          and elbows
        
        
          slightly bent.
        
        
          
            Lizards
          
        
        
          sprawl,
        
        
          with their knees
        
        
          and elbows held
        
        
          at right angles
        
        
          to their bodies.
        
        
          Giganotosaurus
        
        
          skulls
        
        
          had huge “windows”.
        
        
          
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