Living: Just like all of the other "long-necked" dinosaurs, the Brachiosaurus’ neck was heavy and when it held it in upright position for too long time, it would not get any blood to the brain. It might have stood at the edge of the forests and waved the head up and down, while it systematically removed all the eatable food on the trees.

By Josep Fernandez Felgueres

If the Brachiosaurus was warm-blooded, the dinosaur’s children were ten years old, when they were fully-grown. If it was cold-blooded then would take over 100 years before they were grown-up. If it was warm-blooded, it would eat more than 200 kg. (400 lbs.) a day, but a lot less if it was not. Its long front legs and high shoulders lifted its neck up in the air. Not like other Sauropods, it had a straight back, but had a small tail. The back vertebras were so big, that they were hollow.

Skull: Its skull had a small nose and strong jaws with flat teeth. Light, small bones supported the eyeholes and the big nose-gaps. The brain was right behind the eyes, and weighed almost a hundred-thousandth of the whole body.

Anatomy: The spine supported the neck, back and tail and transferred the weigh to the massive bones in the legs. The ribs protected the heart, lungs and other internals. The stomach had a "chewing"-stomach and a appendix to digest the plant-food.