E keerol, Livingstone e Dobzhansky mo yerdake`dow woodi duno ferɗoodirgu e hakkude yimɓe: kadin boo ɓe yerdake dow naptoraaki kala lawni laral ngam henduki yimɓe e no famtuki laral hoo’a ɗun kuuɗe ummatooje nder kareeji.