wild mushrooms get nutrient from it
Nutrients, a place to grow, and protection
It is a log that has become rotten.
grass
snake
the rotten log eating insect (named dixie normus)
This is a type of symbiosis called Commensalism. That is where the the symbiont benefits with little effect on the host.
You can find bugs in rotten wood.
This takes a long time First you will need a Shed (because if a storm comes during the time you are growing the mushroom you lose it) Then a packet of shiitake seeds (I think you can get them from Vesta's Shop) And a log (wow that's hard to get :) Grow it like a normal mushroom and don't pick it until it is very big if you pick it while little it won't grow and it isn't wroth very much
You are likely describing a puffball mushroom. Puffballs are round or pear-shaped fungi that release spores from an opening in the top. They grow directly on the ground or on decaying logs and can range in size from as small as a golf ball to as large as a watermelon.
Usually insects - such as various beetles and their larvae, as well as ants & termites etc - Even some reptiles have been known to live in rotten logs.
Bacteria, various beetles and their larvae, cockroaches, centipedes, millipedes, etc.
If u mean slugs then they live in wet, moist areas such as under a rotten log.