by Dick Houston. Fans of true dog stories, Jack Russell terriers, and African wildlife will want to check out Bulu! Born on a crocodile farm in Zambia's untamed South Luangwa Valley, the puppy seemed different from his litter mates. Too quiet. Unresponsive. Nobody wanted him. Enter Anna and Steve Tolan—former police officers who had left behind their life in England to live in the African bush.