Woah, fanged frogs. I'm sure many of them ARE new species--frogs don't just recognize birds as food out of nowhere. I doubt they woke up one day and said "Hey! Cool! I got me some fangs so now I'll go out and eat birds!" ^^;;;

But it's also likely that certain "species" may have indeed been caused by pollution--we had an example of it here in the US a few years ago. Weird frogs with no eyes, extra legs, two heads, whathaveyous were popping up in lakes and ponds all over the place and it was due to some weird chemical people thought was safe to dump.

China's history of just struggling to survive is deeply ingrained into the culture--when you have eight younger brothers and sisters at home with a sick father, you don't think about "oh, wow, I'm killing the environment." Once the country stabilizes, it, like all the rest, will start moving towards environmentalism, especially with pressure from other countries. You have to remember that countries like China with political instability (the cultural revolution being less than a century ago) will be slower in development than one that knows exactly where it's at.