Living: The Barosaurus’s long neck was build to live in the high air, like a giraffe. The scientists’ have calculated that the heart of this dinosaur weighted about 1.6 t. (3,200 lbs.) to get blood to the brain.

By Joe Tucciarone

But a heart is beating slower, the bigger it is and therefor, the blood would run back to the heart before it reached the brain. Because of that, the scientists’ came up with a theory, which said, that the Barosaurus had 8 hearts: Two in the chest and three pairs in the neck, which all worked together. Another theory says that it had some artery-blockades, which reduced the blood to run back. The enormous neck had 16 vertebras, some of them were over 1 m. (3 ft.) long, but hollow. If they were not hollow, it could not lift its neck from the ground. It was so tall, that if it stood on its back legs, it could look over a five-storage building. Just like the Apatosaurus, it used its tail to defend itself.

Defence: The Barosaurus had to stand up on its back legs to defend itself, while swinging its tail or stomping the attacking dinosaur.