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Comment
. 2014 Sep 30;111(39):14013-4.
doi: 10.1073/pnas.1416382111. Epub 2014 Sep 22.

How conversations around campfires came to be

Robin I M Dunbar  1
Affiliations
Comment

How conversations around campfires came to be

Robin I M Dunbar. Proc Natl Acad Sci U S A. .
No abstract available

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Conflict of interest statement

The author declares no conflict of interest.

Figures

Fig. 1.
Fig. 1.
Median (±50% and 95% ranges) required social time for individual hominin species. Required social time is determined from a generic equation for monkeys and apes relating grooming time to group size (10), with group (i.e., community) size for hominins calculated from mean population cranial capacity (16) using the ape regression equation relating social group size to neocortex volume (4, 17). A population is defined as all of the fossils at a particular location dated to within a 50,000-y time span. Neanderthal community sizes are corrected to take account of the effect of latitude on their visual system, following ref. . “Modern humans” refers to fossil populations of anatomically modern humans. A, australopithecines; H, Homo.
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References

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    1. Gowlett JAJ, Wrangham RW. Earliest fire in Africa: Towards convergence of archaeological evidence and the cooking hypothesis. Azania. 2013;48(1):5–30.

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