An Amazon nation in the Cosmic Era
The Reposians, unlike the rest of Atheus, respect rather than fear the sea. In fact, this respect has grown to border on love and dependence. It is a fact, naturally, that most of Reposian exports are seafoods, and most of its income is from sea-based reasons, from oceanic trading vessels to fish.
The Sanguis Islands is an archipelago nation. Dangerous to sail through them, the people who live there are self-sufficient, independant, stuborn, and resilient.
An African tribe called the Ik throws their children out of their homes once they turn 3. They are left to fend for themselves with no help from their parents at all, and to survive, form groups with others their age. These groups only last a few years, and every so often the individual will join a completely different group.