In the Out of Africa theory, the ancestors of the Australoids, the Proto-Australoids, are thought to have been the first branch off from the Proto-Humans to migrate from Africa about 60,000 years ago. Hypothetically, this migration might have taken place along the now submerged land bridge in the continental shelf of the northern shore of the Indian Ocean, reaching Australia about 50,000 years ago. However, this idea has been contested.
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