Question

as it has become increasingly clear to paleoanthropologists that human beings are the product of mosaic evolution, they have begun to pay attention to the earliest common features that define \human nature\ in distant human ancestors. they are less willing to claim that a bundle of traits signifying \human nature\ originated at one time among our distant ancestors. they are increasingly supportive of the \man the hunter\ scenario. they are less willing to claim that either hunting or gathering was the force that drove the development of \human nature\ in our distant ancestors.

Explanation:

Mosaic evolution implies that different traits in human evolution developed at different times. So, paleo - anthropologists are less likely to claim that a set of traits signifying "human nature" originated all at once.

Answer:

they are less willing to claim that a bundle of traits signifying "human nature" originated at one time among our distant ancestors.