37) [EVOLUTION] Cubone is not a baby Kangaskhan

Here's a different take on the baby Kangaskhan theory.

In the real world, boomerangs were used to hunt kangaroos.

Theory: Marowak have various tribes all over the world, and when these tribes were beginning to be formed, to tell the difference between members of the tribe, the original members all went on a mass hunt of Kangaskahn, took their skulls, gave them tribe markings, and used them as headdresses.

When each member pass away, their eldest child took their headdress and wore it, part in remembrance, and part to honour tradition. This practice still continues to the present day.

We interpreted the Pokedex entry wrong, they don't wear the skull of their ancestor, they wear the skull their ancestor wore as a headdress.