Harvest Appraisal (or whatever you wanna call it)
This skill would allow one, using knowledge of anatomy
to appraise a being's form, deducing what organs would be available.

I'm not good at mechanics, etc, but general idea would be to use a
skill at a mob to see what organs it has.
Perhaps a new skill could also be made 'Knowledge of Anatom'y
which would be the mastery for this, and could also help in dissection.
Just a thought.