Re-reading the Mote for the first time in many years. In these two chapters there are two things that seem to be setting up mysteries to be answered later. But I have not found where they are answered in the rest of the book.
Chapter 14 The Engineer
"Catch that? A blue flare in the alien ship's air lock. Now what was that for?" "To kill yon vermin?" Sinclair asked. "Hardly. The vacuum would have done," Cargill answered.
Chapter 15 Work
Sally watched, wondering what to do next, and wondering also what bothered her about Renner's performance. Not the incongruity of a ship's officer scratching the ear of what seemed to be an alien monkey, but something else, something about the ear itself...
Anybody know if these questions were answered later in the book?