Comments seem to show this is about a literal living animal's limb… thought it was about the bone-colored thing sticking out from the bag with blue on it, containing green stuff…
if i misinterpreted the tone of your post, i apologize, but i wanted to clarify in case you weren't aware, that is what the post is about; that bone colored thing is an animal limb (orange tabby cat sticking to their arm through from behind the fridge door)