you need the 1.2 no cd fix from http://www.gamecopyworld.eu/games/pc_black_and_white_2.shtml
Also make male breeders not female as 1 man can breed with many women but a woman gets pregnant and she is done for awhile :)
Is there any way to get rid of the undead army it makes me want to not play the expansion but BW2 keeps getting run time errors or random crashes and i keep forgetting to save every 2 minutes so it's very annoying