By inference natives of a hot world, Scarrans nonetheless seem comfortable in temperate conditions to the point that their military facilities are heated to a level comfortable for non-Scarrans. This may have to do with the specialized gland in their chest that permits a Scarran to emit a focused beam of heat, usually from the hand, that proves exceptionally useful for purposes of torture and interrogation. Some Scarrans are skilled enough in applying this ability and studying the response its effects elicit that they can tell whether or not the victim is answering truthfully, though certain individuals (including the Scarran/Sebacean hybrid Scorpius) seem immune to this probe. The gland's ability to produce heat is negated by sub-zero temperatures, and its removal has a noticeably debilitating physical effect. The indifference to climate may, however, be due to the Scarran being cold-blooded, similar to reptiles, and that evolution resulted in a gland that 'stores' heat, which may be discharged as a defensive mechanism.