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In the movie Jurassic Park, What was the Dilophosaurus made of? Neither can I make it out be an animatronic robot like T-Rex/Triceratops nor a human costume like Velociraptor (since it was very small). Was it CGI, although it looked real?
Its achieved by Animatronic robot. Click here for full details with picture, to know how it is achieved. Few more picture of Dilophosaurus's making are present here.