Most Chinese, even those who have graduated from college or university, are unaware of the serious health risks to animals that have devoured plastic in the form of dscarded bottles or bags.

A devoured plastic water bottle can cause a zoo animal, like the bear you've mentioned, to die in great pain!

Chinese zoos should take steps to protect all their animals from encountering foreign objects that are able to be devoured!

Just for the record, I should say I have witnessed monkeys devouring plastic bags at Chinese zoos!

Since I have been away in China , my local park seems to have won the battle persuading people not to feed bread to the ducks. It doesn't fit their needs and dispensers are scattered around selling seeds.