The Naga Human Skulls are head hunting trophies, which are acquired from enemies. The Naga tribe, from Nagaland, attach animal horns to the skulls of their head hunted victims.
They are pretty freaky, probably because they are real human skulls. I have loads more tribal skulls to post so be sure to come back for more.
NAGA TRIBE: HEADHUNTED HUMAN TROPHY SKULL
HUMAN BONE, SNAKE SKIN, BOVINE HORNS, RATTAN