I've just completed survey of papers that discuss a variety of quorum sensing behavior of bacteria. I found two promising topics with which we can extend our research of the ant's quorum sensing. First, mobile ad hoc networks (MANET) demand a feasible solution that computes the number of services offered by each node in the networks without computation burden. A result of local search for services suffices in order to predict an amount of available services with the quorum sensing based algorithm. Second, a self-stopping worm is a hot topic in security and another promising application of our approach. Without redundant scan of hosts, a worm that stops at a time after an enough amount of scanning them could be very difficult to be identified. A precedence model used the bacterium's quorum sensing as a basis of analysis that provided additional packet communications to normal traffic between nodes that consumed a considerable length of time. Our approach that does not need any pheromone-like global signal control could shorten the time span for stopping only with local information collection. I am quite close to give designs to those kinds of algorithms.