average ages of vampires/werewolves/thralls?

[Dolores Fuchs]

I noticed that most of the characters fit neatly within the 20-40 age bracket (in body, anyway), and I thought that was odd, then I thought that it made sense.

That is probably the average age demographic of the unhuman, because, in my thought process, people within that age bracket are the most likely to explore and/or put themselves in the situations that turn them into vampires or werewolves, or are young enough to actually want to become vampires or werewolves.

I also wondered if werewolves could reproduce with humans. Anyone else wonder what would happen? Would they just be werewolves, a mix of the two, or will speciation cause some enzymatic or chromozomal block in the uterus, preventing the sperm to actually fertilize the egg?

Anyone else wonder about that?