Figures
2.1Interactions between deaf-mute Kpémuwó and a member of a nearby village on Rossel Island.
2.3Rapid alternation between two speakers of a Mayan language, Tzeltal.
2.5The coloured sclera of apes versus the white sclera of humans.
3.2The listening interlocutor in conversation has to plan a response early in order to respond in as little as 200 ms.
4.2Hominin phylogenetic tree with inferred language capacities.
4.3Known interbreeding events between modern humans, Neanderthals, and other hominins.
4.5The power of gesture: a Guugu Yimithirr speaker’s gestures set up the story of how a man ambushed the speaker by jumping westwards out of a hollow log.
4.7Infantile features that elicit cuteness reactions in humans, including reduction of nose, globular head, and relatively large eyes.
5.10Generalized valuation of exchanges of ‘intimate stuff’ and ‘respect stuff’.
5.11Downward giving of cooked food establishes rank across eighteen castes in a Tamil village.
5.12Patterns of grooming/food exchanges in primates with hierarchies.