voles can be in same nest without aggression

public behaviour social overt animal behavior mouse family basis taiga biocenosis theriology mouselike rodents boreal forests bush tundra northeast europe largetoothed redback vole clethrionomys rufocanus korean redbacked grey greysided mice northern mammals forest dwellers habitats damage wood bionomics human companions mammal farm mus synarthropes pet rodent rodentia simpletoothed small stresstolerant species keeping animals pets nest comfort environment voles aggression highly animals aggression mutual maintenance winter temperature creation reserves beneficial large-toothed