because skull protects it, skull is a hard bone to protect our sensitive parts like, brain, face.
Well a tiger skull is pretty hard.
really really hard
VERY
skull or cranium
because it is hard.
Skull is bone (hard), eyes are soft tissue and decay away.
it is really hard
i think if you have a bump on the back of your skull, you are getting a tumor.
The skull is very hard and therefore protects the brain from being knocked around too much.
A skull made of either hard bone or cartilage
To protect the brain from injury.