which one is more valuable?

a snake or a human?

what if its a precious snake? like an anaconda?
Would you save a human life by killing the snake?
obviously the answer from most people would be saving the human.
But, what about the snake? Is it not a life as well? Is it less valuable? Just because it can't talk or have fancy weapons to defend itself? is it not one of God's creation as well. and there are people who claim they are protecting wildlife and whatever endangered species. But when faced with such a choice..which would it be?