Tells you when biters (or other enemies) build a base
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
do thay expand on peaceful if not is there a mod that lets me change that
They do, you change that in the map settings.
thin y am i not given notfkshins saying thay are expanding
Try using "change map settings" (https://mods.factorio.com/mod/ChangeMapSettings) and make sure expansion is on. Depending on your settings, it may only happen once every few hours.
i use that mod i was told thay use the atack AI for epanshon as becuse that is disabled on pessfull thay dont expand (wish is dum btw)
That sounds possible but unfortunate if you want to actually have expansion with peaceful.
all well i gess i will just trun it off win i get my battrys being mass prdosed