Yet while the Tasmanians are so distinctly separated in physique and customs from the Australians, the fauna and flora of Tasmania and Australia prove that at one time the two formed one continent, and it would take an enormous time for the formation of Bass Strait.
Four points are clear: (i) the Australians represent a distinct race; (2) they have no kinsfolk among the neighbouring races; (3) they have occupied the continent for a very long period; (4) it would seem that the Tasmanians must represent a still earlier occupation of Australia, perhaps before the Bass Strait existed.
An attempt has been made to show that the Australians have close affinities with the African negro peoples, and certain resemblances in language and in customs have been relied on.
Wallace is of the opinion that the Australians " are really of Caucasian type and are more nearly allied to ourselves than to the civilized Japanese or the brave and intelligent Zulus."
He regards the Australians as representing the lowest and most primitive examples of this primitive Caucasic type, and he urges that they must have arrived in Australia at a time when their ancestors had no pottery, knew no agriculture, domesticated no animals, had no houses and used no bows and arrows.
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