Bat

Bat is a passive flying mob that spawns in dark underground areas, such as caves and abandoned mineshafts. It is a small, harmless creature that does not interact with players or other mobs. Killing a bat yields no items and no experience, so bats are purely ambient mobs with no direct gameplay benefits. Bats cannot be bred and do not produce any resources. They spawn naturally in low light, typically in caves, ravines, strongholds, and other underground structures.

Bats are passive mobs and will not attack the player. They fly erratically, often hanging upside down from ceilings when idle. If a player or mob comes near, they become startled and begin flying again. Since bats do not interact with blocks, they will fly through open spaces aimlessly until despawning. They are mostly aesthetic creatures, adding to the ambiance of dark areas.