The Australoid seems on the whole not equipped for the effort.
This prevelence of body and face hair seems to conform to parts of Melanesia where it may be regarded as an Australoid element.
The Negritos appear to be derived from a mixture of the true Negro with the Australoid type.
The primitive Negro stock was "mulatto" in the sense of being not widely differentiated from the dark, original Australoid stock.
It is also probable that the Australoid family extends into south Arabia and Egypt.