Badges update automatically and link to the resource pack page on MineUniverse.
Normal Skeletons, unlike the name suggests, changes the skeleton model to appear closer to that of a real skeleton.
This pack isn't particularly useful to have on at all times. If you are considering ways to scare your friends sometime, this could be a way to do that. Please do let me know if it helps.
This resource pack REQUIRES either EMF or Optifine to work!