It usually means that whatever the sign is on is fatal to your health, meaning it can harm or kill you. Way back in time, if you saw this symbol on a flag that was flying on a ship, it stood for piracy. Other periods of time suggest that this symbol stood for life in so many ways. If you're interested in more information, this website might help: www.buzzle.com/.../the-meaning-of-skull-and-crossbones-symbol.html
The human skeleton has 206 bones and the human skull has 22 bones. The percentage will be: 22/206*100=10.67961165% OR it can be: 30/206*100= 15% (depending on the amount of human skull bones)
there are 23 bones in your skull and jaw altogether.
The human skull is divided into two groups of bones: the cranial bones and the facial bones.
There are 22 bones in the cranium. The bones consists of the facial bones and cranium bones. The only movable bone of the skull is the mandible.
Parietal bones
dangercaution
the die is daner
You will have a large x with a h standing for harmful
It has a skull and bones that cross the skull.
pirates
No reference exists for a "cross bone." However, the name"Cross Bones" is used for a medieval graveyard in Southwark, London. And the term "crossbones" is used for a pair of crossed long bones (in an X style) beneath a human skull, as "skull and crossbones": an insignia used both by classical pirates and as a symbol for "poison" or "death."
Pirates flying a flag showing a skull and cross-bones (Jolly Roger) was used to intimidate any ships that the pirate were going to attack.
The Jolly Roger
The skull with crossed bones is an ancient symbol of danger. In modern times, it has come to represent a warning that a material is a poison.
The Jolly Roger
It is poisonous chemical. The description of the symbol is there is a skull and and two bones crossed together .
A person who displays the skull and bones is using an old symbol for piracy. He may consider himself to be a pirate. But then, people can be very whimsical, and should not always be taken seriously.