Yea just the body.

It all depends. if you have a mutant, it might only be a week old, but
it's pretty safe to say it's about 1yr old. Mine's slightly bigger
that that at about 1.5yrs old.

Of course at some point they stop growing. I'm not sure how long they
are epected to live under good conditions........ depending of course.

Congrads on the angel. They're pretty amazing huh?