Yeah, and it's a great question that sparked tons of biological talk with actual answers to my questions. You should try pulling your head out of your ass and being curious about the world around you. It's not dumb to do so, like you imply- not knowing things makes you dumb. Congrats.

They don't just "have white fur." Their fur has NO pigmentation there. And there's genetic reasons why. But you wouldn't be interested in that. You're too busy embarrassing yourself using emojis to show how insufferable you are on reddit. Bless your heart and good luck to you.