Jadoon do not require air to breathe due to their having an inorganic physiology. Colonies and examples have been found in such strange regions as asteroid fields of deep space and in the bottom of deep caverns. They thrive on energy and feed on it. Jadoon Queens birth their egg larva in the edges of nebulae where the growing babies have a steady supply of cosmic rays for sustenance. It's the proximity to star factories that makes this possible (the actual nebulae, not the Mecha manufacturing megacorp!).
The Jadoon queens seem almost mythological since they are so seldom encountered. However, enough Jadoon (even amongst the artificially cloned ones) retain a certain racial memory of there being a queen regardless of ever having served one or not that it would be rash to dismiss the possibility of there being at least one (since mecha galaxy is so big it would be even more likely that there could be more than one).
Submitted by Mycobacter#712744