No one else was able to travel there until quite recently.
There was a special I saw that these aboriginals from Australia even made it to South America.
Were Aborigines the first AMERICANS? Native tribes in the Amazon found to be most closely related to indigenous Australians
Genetic study finds three native Amazonian tribes share more DNA with Australian Aborigines than any other present-day population
Study suggests Aboriginal ancestors may have colonised South America
It challenges theories of how Native Americans first arrived in the Americas
Read more: http://www.dailymail.co.uk/sciencetech/article-3170959/Were-Aborigines-AMERICANS-Native-tribes-Amazon-closely-related-indigenous-Australians.html#ixzz4D6hnOOjq
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