the liver bone
Mineral salts from calcium and phosphorus compounds are essential for making bones hard and strong. calcium is the most essential mineral to make bones strong but not all bones are as hard as you think some bones are "Spongy" but we just dont notice it. hope this helps if you need to know this....
soft you can bend and hard you can not
Seal's bones are hard.
Chickens have 120 bones. Several of them are extremely small and hard to see. They have less bones than humans, who have 206 bones.
To make your knuckles hard, you should consider doing things that strengthen your bones. There's no other way to get hard knuckles in your hands, however.
Spiders do not have bones. They have exoskeletons which is a hard outer shell.
Hard.
Yes bones are as hard as rock they can take up to 1,000 pounds of pressure
I think it is fairly hard and you should get a professional.
i think they do have bones
Bones have a hard coating to protect the nerves, marrow and blood vessels located in the cavity,
No insect have bones. They have a hard outer covering, but no bones.