Rainsford does not hold human life on the same level as animal life. For Rainsford hunting is a sport or a means to gain food, not a mere even to simply kill for the love of killing.
Zaroff's ideas counter this in that Zaroff has progressed to the point where killing humans, the most intelligent beings, has become a sport to him.
The bottom line is that the two men have different world views which influence their actions.
I’m not sure what I can do but I hope you can, delete this I just want points
1) Their is no difference for nothing.
2) If the author would show his wont mood for people to now what he is expresses.
3) the tone would be for people that can't hear anything because they have a mood for people that can't hear anything.
4) The mood can be created because their can be more than just tones their can be more then tone, their can be mood for other people too.
They say messy handwriting is indicative of a creative mind.
The only opinion that matters is yours .