There should be a straight-line from the top of your head to your tail bone.
He's found a tail bone from a meat-eating Allosaurus that shows a silver-dollar-size hole and a wide gash that a Stegosaurus' spike could have inflicted.
It's been getting worse so I eventually went off the to the doctor who told me, with some mild astonishment on his behalf, that my tail bone, instead of hanging down with a little curl in, is bent in at a 90 degree angle.
It reached down his back to his tail bone and he now scrutinized each of his friend's assailants with his bright red eyes.
He probably would have still been teaching at Premiere Guild right now if he hadn't fell down a flight of stairs and broken his hip and bruised his tail bone.
In January 1996, Mr. Jalakh fell on the ice and hurt his hip and tail bone.
The fact we have an appendix proves we must have once been grass eaters, the fact we have a tail bone or coccyx proves we used to have tails like the gorillas and other animals still do.
Some 15-20 other specimens around the country range from about 10% to 80% complete; missing ribs and tail bones are common.
Major conclusions were made about its mode of walking, and about its tail structure, and yet the important fibula bones, pelvis, and tail bones were not found.
The tail bones are very flat and compressed, seemingly specialized for swimming, just as they are in modern beavers and otters.
With a resounding slap, I go under at a crooked angle that allows my tail bone to take the biggest hit.
Last time I tried riding a board, I fell and broke my tail bone, so no thanks.
Argentinean scientists have discovered gigantic neck, back, and tail bones from one of the largest dinosaurs ever to roam the Earth.