Humans from Avalona.
"Human" is the terminology that the more basic Seed Species came to call themselves. They are a highly regressed form of Alterrans, who have developed to a level akin to the Lanteans, the second Seed Species, at their outset." ""
Humans are spread throughout five galaxies in the Alterrans' former territory:
Originally, two more galaxies were seeded with Humans, however, due to varying reasons, they did not survive.