15017 Giganotosaurus Juvenile
Giganotosaurus juveniles lived in packs and quickly grew up to be dangerous hunters. Giganotosauruses grew to be almost as large as the biggest carnivore in the history of the earth: the Spinosaurus. The name Giganotosaurus means giant lizard of the South, because this dinosaur was found in Argentina in South America.
Its enormous size meant that the Giganotosaurus didn't have any natural enemies.