Australia is a disadvantaged continent. The continent lacked any animals or plants worthy of domestication, the continent was very difficult to cultivate and it had no contact with the rest of the world for nearly 50,000 years. What if this was different? What if the landscape was more varied, with rainforests, grasslands and highlands with good crops and animals for taming with contact with the rest of the world?
Humans migrated into Australia during the mid Stone Age, about 50,000 years ago. During this long duration very little changed within the lives of the inhabitants of Australia. This Alternate Australia would develop agriculture some time after the end of the Ice Age, and the native Australian crops allow complex civilizations to develop. These civilizations have contact with the rest of the world, and external technologies are brought in. I think that thinking of what these animals and crops would look like, or how these civilizations would look like is unnecessary, what's important is how these things would influence this Alternate Australia and the rest of the world in TTL (This Time Line)
Humans migrated into Australia during the mid Stone Age, about 50,000 years ago. During this long duration very little changed within the lives of the inhabitants of Australia. This Alternate Australia would develop agriculture some time after the end of the Ice Age, and the native Australian crops allow complex civilizations to develop. These civilizations have contact with the rest of the world, and external technologies are brought in. I think that thinking of what these animals and crops would look like, or how these civilizations would look like is unnecessary, what's important is how these things would influence this Alternate Australia and the rest of the world in TTL (This Time Line)