giraffe vs brachiosaurus

altithorax ancient animal big biggest brachiosaurus comparasion concept creature cretaceous difference dino dinosaur dinosauria diplodocus extinct fossil front geology giant gigantic giraffatitan giraffe herbivore herbivorous history idyllic jurassic landscape large lived lizard monster nature oversized paleoart paleontologist paleontology palm prehistoric primeval primitive rendering reptile sauropod scale size spectacular surreal vegetarian