The usual bizarre bio-mix of who-knew-how-many planetary-original blood-lines, all tangled inextricably together with those from an equally unfathomable number of others, boosted with genetech, aug., dashes of chimeric and a hint of some machine in there too, depending. And it didn't doubt that every single one of them would find it absolutely fascinating to stare into a fire, even if that was one thing they were unlikely ever to encounter on a ship. The urge would still be there, though;