And You Just Found this Out Now?
If it's on the floor and sometimes even if it IS part of the floor they are going to eat it

Paper... lint, christmas tree needles, if it's there my boys will eat it
If I see them chewing on something without me seeing what it is they get scooped up and a finger sweep of their mouth gets done
Sometimes if they really like whatever they have ... I get a quick growl
which is not to happen

But they are babies ...
and they will explore