To the breaking point: Testing ideas about the evolution of long-necked sauropod dinosaurs

Sauropod dinosaurs were the largest land-dwelling animals of all time, with highly elongated necks and tails that were held suspended above the ground. Holding up such massive body parts would have placed huge stresses on the spine, especially at the flexible joints between the vertebrae. How was the sauropod skeleton able to bear such tremendous loads without causing injury or compromising mobility?
Paleontology News — ScienceDaily