Galharra - Example of Aboriginal Marriage Law and Relationships. 

From Roebourne area, North Western Australia.
A baby’s Galharra is decided by the Galharra of his or her parents and according to the Law there are special rules of marriage between Galharra groups.
A baby’s Galharra is decided by the Galharra of his or her parents and according to the Law there are special rules of marriage between Galharra groups.
More importantly, all things in the world have Galharra - plants, animals, the sun, rain, wind, all sacred sites and permanent pools, all belong to one of the four Galharra groups, and so they are in relationship to us in the same way as an uncle, cousin or parent.
Through Galharra relationships our community is one big extended family with clear rules of respect and discipline. Just by knowing your Galharra people know how to relate to you, they can work out whether you are brother, auntie, cousin, nephew or whatever. If you don’t know your Galharra, then you’d be lost wherever you go.