Having successfully acquired a fully formed Gauna placenta (which just so happens to take the form of Hoshijiro), there's an opportunity for Sidonia's EBD scientists - or at least one of them, Numi Tahiro - to do a little experimentation with this incredible find.
Of course, it's Nagate that Tahiro turns to for help with this, as she's curious as to how this Gauna offspring will respond to him