I'm not so sure that would be the case in a literal sense. I'm quite sure he would not fit on the streets.
Oh no, we do our training together. In fact, you might say that they train me; our training master is a dragon named Celeritas. Dragons are quite capable of speech, and, to my surprise, higher thought. In fact, Temeraire even learned all the flag signals before I could, even though some of them were the same signals we used in the Navy.