What continents are the countries participating in the cooperative research on giant panda protection mainly distributed in?

The countries participating in the cooperative research on giant panda protection are mainly distributed in Asia and Europe. At present, China has cooperated with 22 zoos in 8 countries including Japan, USA, Austria, Thailand, Spain, Australia, Britain, France, Singapore, Belgium, Malaysia, Korea, Netherlands, Germany, Indonesia, Finland, Denmark and Russia. These cooperative studies have promoted academic exchanges between China and foreign countries in the field of endangered species protection and improved the level of protection research.