User blog comment:Eeneend/10: Humans?/@comment-433902-20100203173140

If I remember correctly, they give themselves their implants.

It's unknown if any more Agori have been "created"/"born" after the Shattering.

GregF thinks it's irrelevant to the story how the Agori are born/created, and therefor won't discuss it (He's been asked many time about how the Agori and Glatorian reproduce).

When they are born/created, they most likely look about the same as after they are given implants, though that's not official.