Why did hunting animals bore General Zaroff in the book the most dangerous game?

In "The Most Dangerous Game," General Zaroff becomes bored with hunting animals because he finds it too easy and lacks challenge. After years of hunting various species, he seeks a more thrilling experience that tests his skills and intellect. This leads him to create a deadly game where he hunts human beings, viewing them as the ultimate prey due to their ability to reason and strategize, which adds an exhilarating complexity to his hunts.