The process involves constant discovery and, sometimes, reevaluation.
Earlier, it was believed that the transition from a hunter-gatherer lifestyle to farming was a peaceful transition.
However, the study offers evidence to show that hunter-gatherers were wiped out by farmer-settlers in what is nowDenmark.
This transition has previously been presented as peaceful.
However, our study indicates the opposite.
They were wiped out within a few generations after a farmer population arrived and began driving them out.
Another population change took place about a thousand years later, some 4,850 years ago.
Researchers noted that the second wipe-out could have also involved both violence and new diseases.
The newcomers quickly replaced the first farmers to settle in Denmark and gave rise to a new cultural group.
This time, there was also a rapid population turnover, with virtually no descendants from the predecessors.
Our results help to enhance our knowledge of our heredity and our understanding of the development of certain diseases.
The findings suggested that the farmers immigrated to the area.
As the hunter-gatherers were there first, the farmers must have immigrated into the area.
