7

In the earlier seasons of DS9 it was established that Odo needs to spend at least some time in his liquid form every 16 hours (which he referred to as 'regenerating').

Does this apply to the rest of his species, and if so, how do the ones posing as humanoids in other cultures avoid showing up on ship/station/planet-side sensors? (Two questions I know, but they are connected.)

  • I'm not sure we can say much more than what is below. Let me know if you are looking for anything else specifically. – Praxis Nov 22 '15 at 14:56
  • @Praxis: you made some good points, but about retiring to their quarters to regenerate- Starfleet (or whoever) might not have actual hidden cameras in everyone's bedroom but I still suspect human (again, or whoever) life signs shifting to changeling life signs would be detected by someone's sensors unless the changeling had methods or technology to fool them with. – Nu'Daq Nov 22 '15 at 21:34
  • Very reasonable. The other points, about shorter regenerative lengths for skilled Changelings / Changelings from the Link, were meant to address that. Even if you are willing to accept EU sources, I don't recall a Star Trek novel that addressed regeneration of Founders (only Odo). – Praxis Nov 22 '15 at 23:09
4

No direct canon answer

Unfortunately, the need (or lack of need) for regeneration by Changelings other than Odo is never addressed directly in DS9 episodes.

Points to consider

However, we can reasonably conjecture any one of the following things:

  • If they have a hard limit of holding their form for at most 16 hours per day, that still gives them only 8 hours each day where they must "sleep" — which is convenient. A changeling imposter can simply retire to his or her quarters and pretend to "sleep" while actually regenerating. (During extenuating circumstances when there is no designated sleep period, a Changeling imposter may be able to schedule short bursts of regeneration during private moments instead of a continuous period of regeneration.)

  • Some Changelings are far more skilled at shapeshifting than Odo — and successful infiltration requires great skill, as they will need to mimic humanoids exactly. These skilled Changelings may be able to hold their shape for longer — possibly days on end without having to revert to a liquid state.

  • Changelings spend most of their lives in liquid form in the Great Link. It could be that this regenerative time accumulates. Perhaps the longer one spends in liquid form in the Link, the longer he or she can spend in solid form.

  • Changelings, through the Vorta, have access to extremely advanced medical knowledge and technology. (In Season 7 of DS9, we see efforts by Vorta doctors to cure the Founders.) There could be medical means of shortening a Changeling's regenerative period.

Again, this is all pure speculation, but compatible with what we see in DS9.

  • I thought this was directly addressed (at least partially) when Odo first meets the female changling. I thought it related to the fact that most changlings rarely keep the same form all the time and the frequent shapeshifting eliminated the need to revert to a liquid form. I'm rewatching the series now, but haven't reached this point yet. – psubsee2003 Jul 18 '18 at 12:49

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