Once, there was an ancient species Called (don’t have a name for them yet but let’s call them M’s). The (M’s) were a forest creature, that was rather advanced, with their own holidays and traditions
One day, a vast majority of the (M’s) got infected by a illness, most of the (M’s) perished, leaving the surviving (M’s) to hide in the mountains, and distance themselves from others to avoid catching the disease.
After the remaining (M’s) had fled, the bodies of the dead (M’s) were taken over by a fugal host, resembling that of moss.
These hosts made it so the (M’s) bodies would grow m