 Biyo laaanta ka taagan deeganadaan waxaa keenay markii ay qalaleen waro iyo ceel gacmeedyo biyaha laga heli jiray, waxayna dhibka soo bilowday laba todobaad ka hor, inkastoo xilligii dayrtii ina dhaaftay ay waxoogaa biyo ahi galeen, haddana dhulku abaar ayuu ahaa saddex sano oo la soo dhaafay, taasoo yaraysay kaydka biyaha ee la heli karo. 