There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
Well, I would say there are more geographical barriers between the Manchuria and Central Asia than the Manchuria and China proper.
Between the Manchuria and Central Asia, there is a huge Gobi desert, while between the Manchuria and China proper was almost none before the artificial Great Wall.
It was much easier for the Pleistocene China tiger to reach Manchuria than the Caspian tiger.