Well no doubt about it, the improvement in the drugs that were available for anesthetizing animals intermuscularly. In other words, the dart gun, and being able to deliver a medication to an animal from a distance, and hitting the muscle. You know, because prior to that, there were other anesthetics, but had to be given intravenously or inhaling, and you know, you just couldn’t do that with zoo animals. Now that you could deliver, you know, medication that was going to anesthetize them, allow you to get in there and draw a blood sample, take radiographs, just examine the animal, you know, that made all the difference in the world.