How do the anthropologists feel that the information about living hunter gatherer can be used to under stand past society ? Discuss

Anthropologists feel that the information about hunter gatherer societies can be used to understand past societies because they believe that human beings in past societies used to live in the same way as human beings in hunter gatherer societies in present times. Hence, by studying the lives of hunter gatherer societies of present times, they believe they can gain knowledge of the way people lived in past societies.