Chullin 53: Clawing of a Sacrifice by Another Animal

Today's daf discusses whether or not an animal is tereifa if it has been clawed by another animal.   It begins with descriptions of a cat's claws in comparison with the claws of a weasel.  The daf goes on to describe the depth of the injury, whether or not the claw was left behind, and how to inspect for damage.  The rabbis agree that certain injuries create immediate rulings of tereifa whether others must be examined - the internal organs and/or the simanim - to determine a state of tereifa.