I guess it is the nature of wolves to be pro-death – certainly as far as sheep are concerned. And of course when a wolf pretends it is a sheep, simply to attack real sheep, that is bad news indeed for every sheep. It is a real enough fixture of nature that famous sayings have been based on this.
Jesus for example used this imagery when he was warning against false teachers and false prophets who would come in and seek to deceive and destroy God’s people. He put it this way in Matthew 7:15: “Watch out for false prophets. They come to you in sheep’s clothing, but inwardly they are ferocious wolves.”
And as an interesting aside, the socialist Fabian Society has as its symbol a wolf in sheep’s clothing. The Fabians seek to subvert democratic nations from within by gradually eroding and undermining their institutions. Instead of a full-frontal assault, they think it is preferable to sneakily destroy a society internally.