更新1:
I mean why I cannot find any Kangaroo in zoos of other foreign countries, say in Singapore or Ocean Park in Hong Kong. Is there any law prohibite the export of Kangaroo to other zoos ? My friend told me he did see a small kangaroo in Bangkok Zoo ???
更新2:
I mean if the kangaroo is so strong, they can made the 2nd or 3rd generations in zoos of foreign countries or let them live in the wild forest, can the kangaroo survive in other foreign countries ?
