I believe nothing specific but this is a possibility to consider. At the moment, there is as much accepted evidence for her evolving here as in Africa or Asia and arriving via land bridge: none. There are instances of parallel evolution, of critters from entirely different roots evolving to fill the same ecological niche. Australia has some. South America has some.
Not directed at Norseman, but I see a podium and I'm gonna take it: IMHO it's not really necessary to have a "belief" on this topic. Better to keep an open mind and follow the evidence than conclude first, then ignore evidence that doesn't support the foregone conclusions.
MIB