Margaret, that's why I like this forum - we can all share the butterflies and cats we get in our area with others who don't get to see them. I know I get excited by "common" butterflies like Commas, Question Marks, and Mourning Cloaks while others don't think twice about them. And I only get an occasional Silver-Spotted Skipper but when I visit Grandma in West Virginia, those suckers are everywhere!
Glen, I think Florida and Australia both suffer greatly from introduced, invasive species. In fact, I'm pretty sure we have a whole bunch of Australian pines here we'd be willing to send back home.
At least we have a lot of people in Florida working on the problem. I used to volunteer a lot with the Tampa Bay Estuary Program before I got sick. They would remove invasives and replant natives. But I kind of like that guy in Australia who was offering a free beer for each of those invasive toads you brought in. (Can't think of the name - one of those huge Bufo genus toads?) That's a man with a plan!