Would a water world be better at surviving impacts from planetoids and comets?
I just think that anything outside of the imapct zone would be able
to literally roll with the punch and survive, as opposed to being on
dry land, but tell me otherwise.
This still does not mean an aquatic creature would be building starships
any time soon, though. Unless even they felt they had to get their
eggs out of one basket, or egg sac.