Some dudes lack a sac and a pair of balls.
Fuckin evolution. It exists, you religionfags.
Supposedly the appendix is used as a sort of emergency escape vault for enzymes and stuff in your stomach. I still use my wiggly ears, when I hear a loud sound I jerk them back automatically. Partially because I can and you can't.
Goosebumps increase the surface area of our skin, making us warmer...we still use them...so why are they on this list?
idk about you guys, but i still find goosebumps useful... they warm me up...