Females stay in their mother's prides their entire lives, unless food shortage forces the pride to fracture. Males, however, are forced out of their pride when they are old enough to compete with the dominant males.
Male lions will roam in groups, usually made up of related individuals, and search for prides to take over. Males typically only live in a pride for two to three years before being forced out by another group.
Male and female lions mark their territory with urine and by roaring.