Summary:

• **Ancient Humans in Australia**: Scientists studied DNA from Aboriginal Australians and found that humans first arrived in Australia about 60,000 years ago. This makes Aboriginal Australians some of the oldest continuous populations of people still living in the same place today.

• **How Scientists Know**: Researchers looked at genetic information (DNA) from modern Aboriginal people and compared it to DNA from ancient remains to figure out when their ancestors first came to Australia. This DNA detective work helps us understand human history and how people spread across the world thousands of years ago.