Sukurachi wrote:
Sharks actually never have "live birth". The ones who simulate live birth in fact lay eggs. The eggs, complete with hard-shelled egg casing like all other sharks, are hatched within the body cavity of the mother. They are then released at a proximal later date.
Caveat: the information on sharks dates from a time I was thinking of going into marine biology (30 years ago). I will readily accept that more recent findings may have altered the general scientific consensus on the issue.
I did a dissection on dogfish, which are sharks. One of them was pregnant, and inside were 3 embryos. Granted, they appeared quite formed (this was a vert class, not developmental, so I don't know what stage exactly they were at) however, the yolk sac WAS still present, large (I would say still nearly the same volume as the embryo), and quite distinct from them. There was no evidence within of any shell. This is what I based my information off of, as I admittedly haven't learned to much on the specifics of fish/shark reproduction yet. That said... in either case it depends on what you definition you want for live birth. Perhaps they do most of their development within the egg inside.. and then finish outside the egg(I'm thinking.. kind of like kangaroos or pandas, which are birthed before fully developed).. in which case.. I think it would be more a mix between the two (as some development would be in the egg.. and some external to it...)... When I have less studying to do I may use our school's access to scientific papers, or my text books, to try and find out EXACTLY what's going on.. As now I'm definitely interested.
Back on topic: And yes, I understand the point you were trying to make. However, my counter was simply that there are exceptions, or alterations to the norms even here on earth. Who KNOWS how an alien species might evolve to reproduce. Who knows if their eggs are even eggs as we think of them? It's the same as how I think that technically, Ravagers don't belong to any earth classification (same with nether rays and spore bats... wtf would you classify THEM as o.O) especially without knowing more about the biology of them.. However, if we go by external characteristics, AND the comments of the organizations visiting outland.. I still stand by my vote for them being insectoid (or at the least, crustacean/arthropods, which is a bit broader than "insect")