[Intermernet]

Aboriginal people wouldn't be in Australia at all if it weren't for sea level lowering, so you could say it's actually more dramatic than flooding.

"There is considerable discussion among archeologists as to the route taken by the first migrants to Australia, widely taken to be ancestors of the modern Aborigines. Migration took place during the closing stages of the Pleistocene, when sea levels were much lower than they are today."[1]

"It is generally believed that Aboriginal people are the descendants of a single migration into the continent, a people that split from the first modern human populations to leave Africa 64,000 to 75,000 years ago, although a minority propose that there were three waves of migration, most likely island hopping by boat during periods of low sea levels"[2]

[1]: https://en.wikipedia.org/wiki/Prehistory_of_Australia#Arriva... [2]: https://en.wikipedia.org/wiki/Indigenous_Australians#Arrival...