Brachiosaurus is a general term for the "Brachiosaurus genus" dinosaurs of the Jurassic period. The body length is 25 meters, the height is 15 meters, the weight is 30 tons, the tail is thick and short, the head is small, the neck is long, and the appearance is similar to that of a giraffe; There are large claws on the inner side of the forefoot; The jaw is well-developed, with 52 teeth covering the upper and lower parts, and the edges of the teeth are sharp; Strong limbs; The nostrils grow on the top of the head. Named after its long forelimbs. The head is very small and it is a dinosaur with low intelligence. Living in North America during the late Jurassic period and North Africa during the early Cretaceous period. It inhabits grasslands filled with ferns, cycads, and wood thieves. Mild temperament, enjoys living in groups. Feed on leaves and tender branches. Often foraging together.