Oh, sorry. I gave you too much credit. Hundreds of millions of years ago, apparently when genetic selection stopped, the small mammals that became humans like almost all small mammals foraged individually or if your flexible time frame includes just the last few million years then likely they foraged as a group. Your idea of division of labour is not supported by what we know or see today. In fact predators ie. those who hunt(ed) now are usually the females but pre-humans were more likely foragers than hunters so you really have no point or argument at all. Sorry, again, for thinking that you might.