Historical Dictionary of Australian Aborigines 2ed:The Aboriginal Australians first arrived on the continent at least 60,000 years ago. Indigenous Australians occupied and adapted to a range of environmental conditions from tropical estuarine habitats, densely forested regions, open plains and arid desert country, to cold, mountainous and often wet and snowy high country. Cultures adapted according to the different conditions and adapted again to environmental changes brought about by rising sea