Australian Aboriginal skull shows sloping brow and eye ridges like Neanderthal. Cranial capacity of featured Aboriginal skull smaller than Neanderthal. Tasmanians lacked fire-making, boomerangs, fishing, sewing, and tree-cutting tools. Two distinct Aboriginal races coexisted on Australia for 50,000 years without merging. Coastal Aboriginals more primitive than inland Caucasoid-like ones. Inland Aboriginals blond-haired as children, interfertile with Caucasians. Tasmanians represent isolated first-wave migrants from 130,000 years ago. Mainland Aboriginals have 11% recent Indian ancestry from second-wave mixing. Tasmanians showed fertility problems hybridizing with Europeans. Dravidians genetically close to Australoids and Negritos. Human migration had southern route wave reaching Australia early and isolated. Neanderthals had limited interfertility with humans like suspected for primitives. Aboriginal primitiveness exceeds cultural explanations given tech losses like fishing. Distinct races meet species definition despite geographic overlap. BBC planned to destroy primitive Tasmanian skull relic.