What do exiles do in Endless Space 2

Twice now, when one of my scout ships has launched a probe at a curiosity on a remote planet, the popup said I had been awarded with Amoeba Exiles. Where do these exiles go?
I thought they might appear as population somewhere in my empire, but they're not on any of my planets. They don't appear as anomalies/resources in the system I found them on either. There's no colonized planets in that system.
Best Answer
They do appear as population, it just takes some time.
When you find an exile, you'll notice a little civilian ship with them on it. They automatically move to your nearst system with free population slots and join that colony.
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