Den (short for Denruin) are small little pack creatures. Their little horn on their lower back is so predators can't attack them from behind and those horns aren't for fighting actually! Though horns are more soft and squishy and used for intimidating and whoever has the biggest horns is the leader of the pack. Also all baby Dens start as a worm like baby with small legs that can't do anything. As they grow up their horns get bigger and their legs get more stronger so they can hold themselves up better! Also their colors start off a bit wonky before they sort themselves up as they grow!