How do you think, to whom belongs this thing from our Blue Skull Sticker? Is it a sull of humans or maybe of some animal such as primates? We think that this one is of an animal. But let's better dive into the symbolism of this thing. The most common symbolic use of the skull is as a representation of death, mortality, and the unachievable nature of immortality. Also, it's the common outfit for the Mexican holiday - Día de Los Muertos.