The Australian Aborigines,.... what race are they??? What are their origins?

they are considered their own phenotype because their bone structure is very unique and different from other races. as others stated there are 5 races but khosoid (or capoid) is a new one and it is indeffinite still, which means they are not really their own race they just claim to be that's all. their information can be found on wikipedia and other websites. they are an old phenotype indeed.