dinosaur albertosaur, albertosaurus libratus in jurassic park

albertosaur albertosaurus ancestor animal archeology attack attacking big biology carnivorous claw claws collection danger dangerous dino dinosaur dinosaurs education educational environment evolution excavations extinct fast fight forefather forest giant green horror hunt hunting illustration imitation jaws jurassic killer knowledge libratus life lizard long meat model natural nature old paleontology park past predator prehistoric prehistory reptile reptiles run running science scientific series sharp summer tail teeth terror theory three tooth trees triassic walk walking wild wildlife wood neck