ARTIFICIAL INTELLIGENCES

AIs are more a phase of life than as a species--you may start out as pure AI and careen through incarnations as a robot, chip-enhanced animal, cyborg or pure organic... Your path varies by locale and preference, but alternating silicon and carbon (breathe in, breathe out!) is wise.

If the technology exists to support them at all on Siphonia, they'll be most visible in extreme environments like deserts, ice, orbital cities... but quietly ubiquitous.