> ethnographic data – contemporary studies of groups that existed until some modern contact
> an important challenge when interpreting evidence from ethnographies of modern hunter gatherers is determining which groups are likely to be representative of hunter gatherers who would have lived before the invention of agriculture.
>"To avoid these problems, our ethnographic sample ... excludes groups who were only studied long after sustained contact with agricultural or state societies.
> ethnographic data – contemporary studies of groups that existed until some modern contact
> an important challenge when interpreting evidence from ethnographies of modern hunter gatherers is determining which groups are likely to be representative of hunter gatherers who would have lived before the invention of agriculture.