I think Ruth is the way he is because of the time he spent in the egg before Jaxom helped him to break the shell. I'm not the scientifically minded type, so I couldn't tell you the technical side of it. I might need to reread the book again to better understand the question, or give a better answer, I'm afraid, although there are some here who might be able to answer it better than I can.
Oh, and welcome to the Chronicles, Flint!
