We’ve talked about one, which was a new drugs on the market. I think that the important things that have transpired cover a broad range of situations, the improved husbandry practice, the improved nutrition, we’ve got nutritionists on the staff of many zoos. And one time the veterinarian was the nth degree of importance in terms of feeding these animals. Now we’ve got people that have a good sound nutritional background, sometimes coming from the domestic animal field, but adapting it quite well to zoos. So I think that’s an important milestone that’s contributed to animal care. And we’ve got other things, as far as medicine is concerned, I’ve mentioned improved diagnostic techniques, the use of blood, both hematology and clinical biochemistry, and also the use of serologic tests and other things that… Even DNA technology is now being used by many zoos, both large and small, and having access to good laboratory procedures is I think an important part of improving animal care. New technologies, such as ultrasound, CT scans.
