Wow, you must find that article again! I've been wondering if that kind of phenomenon exists anywhere. And yes, that would be quite a controversial claim if a researcher were to publish it.
If it is true, I'd expect that aborigines would have less problems mating with Malaysians, BTW. I wonder about an aborigine + a !Kung? or aborigine + a Fuegian? I suppose we could start a "cross-cultural dating service" to try to discreetly generate some raw data... :-)
BTW, I think I meant "Polynesians".
I think we need to create a UN agency to get on this project right away. We have to save humanity from speciation.