From one who knows anatomy...the pic looks like liver on the top end (dark material) and all of the stomach and intestinal tract (the stuff that looks like brains) below it.  This is what it looks like doing a necropy (animal autopsy) except not so neatly packaged.  The size is possibly that of a small cat (hope not :(...more

Aopologies, in the previous comment the url auto-deleted because I used the whole www address.   They ALL go through giftcardgranny dot com