Pumping blood up a giraffe’s long neck to its brain requires an extraordinarily powerful heart. A giraffe’s heart ... and valves that control blood flow and prevent blood from rushing too ...

Its pale buff coat is blotched with brown patches. The giraffe has a massive heart which pumps at a pressure 2 or 3 times that of a healthy man to push blood up its long neck. A giraffe weighs over ...

It was a very tall order — but an Oklahoma chiropractor gave a neck adjustment to a 16-foot male giraffe ... blood vessels connected between the heart and brain are sheared, a major concern ...