Short story about Werewolf attacks Robot

[JohnIII]

I read it in high school in 2005, it was from a collection of old sci-fi short stories I believe paper back, we had photo copies of the two pages on a sheet of paper, small book both pages on one sheet. I can't say about a date it was published but it was old. It was about a man who was a werewolf and having to adapt to more modern times. I recall it mentioned at first it was only silver would hurt but he eventually became sesitive to all metals even refusing to take coins. he was hiding in a bush beside a walking path at night, and listening to the foot steps waiting for a strong healthy man, and he had carefully undressed and folded his clothes up so they wouldn't be torn apart from the transformation. He heard some strong hard foot steps coming, and began pounced on the man biting at the throat or shoulder, shattering his teeth the shock throwing him of forcing him back to human state, and the prey turns to him and says something like " None Human Hostile, destroy" the end

 

[JohnIII]

I want to say the title was something like "The Evolution of Monsters"