Modern hunter-gatherers are generally not considered representative of our ancient ancestors. I can go into more detail if anyone's curious, but the short version is that they've had just as long to "evolve" as we have and the extant groups are those that were able to live in very marginal environments where no one else could, among other things.

Of course there's debate both ways and lots of people trying to tease out the parts that are representative, but it's unsettled enough that I recommend just thinking of them as wholly unrepresentative.