I know that Moya gave birth to Talyn and that this was the result of Peacekeepers trying to make a Leviathan gunship, presumably by some sort of artificial means. But how would Leviathans normally reproduce?

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    When a mummy Leviathan and a daddy Leviathan love each other very much, there's a special hug they do. – Valorum Mar 25 '16 at 13:23
  • Do you really want to know? – The Giant of Lannister Mar 25 '16 at 13:42

I think we can only judge from "They've Got a Secret" and "The Hidden Memory" and from what little evidence is added by "The Way We Weren't".

In the former, D'Argo falls down a shaft and accidentally breaks a Peacekeeper shield, releasing scads tiny biomechanoid "cells" (for lack of a better word) that apparently get Moya pregnant. These cells were confirmed by Zhaan to come from Moya herself. The baby grows inside a special incubation area until it is mature enough to "be born" and free themselves from the parent. The difficulty with Talyn was that he was not a normal Leviathan.

We later find out that the shield was placed there to sabotage the gunship project.

The upshot of all this is that Leviathans appear to reproduce asexually, since the biomechanoid "sperm" that impregnated Moya came from her as well.

  • It beggars belief the a communal multi-cellular species reproduces asexually. It's far more likely that Leviathans share sperm (via their transfer ships). – Valorum Mar 25 '16 at 14:10
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    @Richard: Well, Rygel farts helium, which is a physical impossibility. I don't think the writers cared much about the science. They just wanted to tell good stories and be internally consistent. Anyway, it seems a little too easy for a Leviathan to impregnate itself. Perhaps both happen, but I would wager that it more often happens asexually. – John Sensebe Mar 25 '16 at 14:22
  • Even we were to assume that natural parthenogenesis in social animals is impossible, based purely on the lack of such examples on Earth, are we sure the Leviathans are not an engineered species? – Adamant Mar 25 '16 at 14:34
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    @Jonah - We're sure they are. There was an ep where Rygel's voice got on-screen as one of their creators. – Radhil Mar 25 '16 at 14:45
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    This link specifically identifies Tayln as a male: link and Moya was consistently referred to as "she" so there are 2 identified sexes. – sfhq_sf Mar 25 '16 at 15:23

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