Worms Family

Burrowing monsters can move through any block and are immune to lava and hot blocks. Burrowing monsters are usually heralded by a shuffling noise, and visible shaking of blocks.

Burrowing monsters require any sort of block to move around through, or they will be pulled down by gravity.

This can be a Giant Worm, a Devourer, a Bone Serpent or the Eater of Worlds.