Pantomime and imitation in great apes

2018 ◽  
Vol 19 (1-2) ◽  
pp. 200-215 ◽  
Author(s):  
Anne E. Russon
Keyword(s):  
Data Mining ◽  
Language Evolution ◽  
Great Apes ◽  
Great Ape ◽  
Evolution Of Language ◽  
Distinct Process ◽  
Action Imitation ◽  
Primitive Forms ◽  
Communicative Abilities

Abstract This paper assesses great apes’ abilities for pantomime and action imitation, two communicative abilities proposed as key contributors to language evolution. Modern great apes, the only surviving nonhuman hominids, are important living models of the communicative platform upon which language evolved. This assessment is based on 62 great ape pantomimes identified via data mining plus published reports of great ape action imitation. Most pantomimes were simple, imperative, and scaffolded by partners’ relationship and scripts; some resemble declaratives, some were sequences of several inter-related elements. Imitation research consistently shows great apes perform action imitation at low fidelity, but also that action imitation may not represent a distinct process or function. Discussion focuses on how findings may advance reconstruction of the evolution of language, including what great apes may contribute to understanding ‘primitive’ forms of pantomime and imitation and how to improve their study.

scholarly journals Language, gesture, skill: the co-evolutionary foundations of language

2012 ◽  
Vol 367 (1599) ◽  
pp. 2141-2151 ◽  
Author(s):  
Kim Sterelny
Keyword(s):  
Language Use ◽  
Language Evolution ◽  
Stable Form ◽  
Great Ape ◽  
Evolution Of Language ◽  
Incremental Model ◽  
Evolutionarily Stable

This paper defends a gestural origins hypothesis about the evolution of enhanced communication and language in the hominin lineage. The paper shows that we can develop an incremental model of language evolution on that hypothesis, but not if we suppose that language originated in an expansion of great ape vocalization. On the basis of the gestural origins hypothesis, the paper then advances solutions to four classic problems about the evolution of language: (i) why did language evolve only in the hominin lineage? (ii) why is language use an evolutionarily stable form of informational cooperation, despite the fact that hominins have diverging evolutionary interests? (iii) how did stimulus independent symbols emerge? (iv) what were the origins of complex, syntactically organized symbols? The paper concludes by confronting two challenges: those of testability and of explaining the gesture-to-speech transition; crucial issues for any gestural origins hypothesis

scholarly journals Chimpanzee facial gestures and the implications for the evolution of language

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12237
Author(s):  
Brittany Florkiewicz ◽  
Matthew Campbell
Keyword(s):  
Facial Expressions ◽  
Great Apes ◽  
Human Language ◽  
Great Ape ◽  
Evolution Of Language ◽  
Wide Range ◽  
Facial Gestures

Great ape manual gestures are described as communicative, flexible, intentional, and goal-oriented. These gestures are thought to be an evolutionary pre-cursor to human language. Conversely, facial expressions are thought to be inflexible, automatic, and derived from emotion. However, great apes can make a wide range of movements with their faces, and they may possess the control needed to gesture with their faces as well as their hands. We examined whether chimpanzee facial expressions possess the four important gesture properties and how they compare to manual gestures. To do this, we quantified variables that have been previously described through largely qualitative means. Chimpanzee facial expressions met all four gesture criteria and performed remarkably similar to manual gestures. Facial gestures have implications for the evolution of language. If other mammals also show facial gestures, then the gestural origins of language may be much older than the human/great ape lineage.

scholarly journals From sharing food to sharing information

2018 ◽  
Vol 19 (1-2) ◽  
pp. 136-150 ◽  
Author(s):  
Judith Burkart ◽  
Eloisa Guerreiro Martins ◽  
Fabia Miss ◽  
Yvonne Zürcher
Keyword(s):  
Cooperative Breeding ◽  
Vocal Communication ◽  
Language Evolution ◽  
Great Apes ◽  
Great Ape ◽  
Cognitive Component ◽  
Group Members ◽  
Cooperative Enterprise ◽  
Share Information

Abstract Language is a cognitively demanding human trait, but it is also a fundamentally cooperative enterprise that rests on the motivation to share information. Great apes possess many of the cognitive prerequisites for language, but largely lack the motivation to share information. Callitrichids (including marmosets and tamarins) are highly vocal monkeys that are more distantly related to humans than great apes are, but like humans, they are cooperative breeders and all group members help raising offspring. Among primates, this rearing system is correlated with proactive prosociality, which can be expressed as motivation to share information. We therefore propose that the unique coincidence of these two components in humans set the stage for language evolution: The cognitive component inherited from our great ape-like ancestors, and the motivational one added convergently as a result of cooperative breeding. We evaluate this scenario based on a review of callitrichd vocal communication and show that furthermore, they possess many of the mechanistic elements emphasized by the mirror system hypothesis of language evolution. We end by highlighting how more systematic phylogenetic comparisons will enable us to further promote our understanding of the role of cooperative breeding during language evolution.

Effects of Compression on Language Evolution

2000 ◽  
Vol 6 (2) ◽  
pp. 129-143 ◽  
Author(s):  
Tracy K. Teal ◽  
Charles E. Taylor
Keyword(s):  
Complex Systems ◽  
Language Evolution ◽  
Minimum Description Length ◽  
Evolution Of Language ◽  
Problem Space ◽  
Natural Languages ◽  
Look Up Table ◽  
The Relationship

Abstract For many adaptive complex systems information about the environment is not simply recorded in a look-up table, but is rather encoded in a theory, schema, or model, which compresses information. The grammar of a language can be viewed as such a schema or theory. In a prior study [Teal et al., 1999] we proposed several conjectures about the learning and evolution of language that should follow from these observations: (C1) compression aids in generalization; (C2) compression occurs more easily in a “smooth”, as opposed to a “rugged”, problem space; and (C3) constraints from compression make it likely that natural languages evolve towards smooth string spaces. This previous work found general, if not complete support for these three conjectures. Here we build on that study to clarify the relationship between Minimum Description Length (MDL) and error in our model and examine evolution of certain languages in more detail. Our results suggest a fourth conjecture: that all else being equal, (C4) more complex languages change more rapidly during evolution.

scholarly journals The Social Evolution of Language, and the Language of Social Evolution

2007 ◽  
Vol 5 (4) ◽  
pp. 147470490700500 ◽  
Author(s):  
Thomas C. Scott-Phillips
Keyword(s):  
Social Evolution ◽  
Language Evolution ◽  
Reciprocal Altruism ◽  
Honest Signaling ◽  
Evolution Theory ◽  
Evolution Of Language ◽  
The Social ◽  
Human Capacity ◽  
Correct Application

Recent years have witnessed an increased interest in the evolution of the human capacity for language. Such a project is necessarily interdisciplinary. However, that interdisciplinarity brings with it a risk: terms with a technical meaning in their own field are used wrongly or too loosely by those from other backgrounds. Unfortunately, this risk has been realized in the case of language evolution, where many of the terms of social evolution theory (reciprocal altruism, honest signaling, etc.) are incorrectly used in a way that suggests that certain key fundamentals have been misunderstood. In particular the distinction between proximate and ultimate explanations is often lost, with the result that several claims made by those interested in language evolution are epistemically incoherent. However, the correct application of social evolution theory provides simple, clear explanations of why language most likely evolved and how the signals used in language — words — remain cheap yet arbitrary.

scholarly journals Wild African great apes as natural hosts of malaria parasites: current knowledge and research perspectives

2017 ◽  
Vol 4 (1) ◽  
pp. 47-59 ◽  
Author(s):  
Hélène Marie De Nys ◽  
Therese Löhrich ◽  
Doris Wu ◽  
Sébastien Calvignac-Spencer ◽  
Fabian Hubertus Leendertz
Keyword(s):  
Current Knowledge ◽  
Great Apes ◽  
Future Research ◽  
Human Populations ◽  
Great Ape ◽  
Malaria Parasites ◽  
Research Perspectives ◽  
Parasite Ecology ◽  
Natural Hosts ◽  
African Great Apes

Abstract. Humans and African great apes (AGAs) are naturally infected with several species of closely related malaria parasites. The need to understand the origins of human malaria as well as the risk of zoonotic transmissions and emergence of new malaria strains in human populations has markedly encouraged research on great ape Plasmodium parasites. Progress in the use of non-invasive methods has rendered investigations into wild ape populations possible. Present knowledge is mainly focused on parasite diversity and phylogeny, with still large gaps to fill on malaria parasite ecology. Understanding what malaria infection means in terms of great ape health is also an important, but challenging avenue of research and has been subject to relatively few research efforts so far. This paper reviews current knowledge on African great ape malaria and identifies gaps and future research perspectives.

Cradle Under the Canopy The Forest Origins of our Ape and Hominin Ancestors and the Tropical Forest Forays of the Genus Homo

2019 ◽  
Author(s):  
Patrick Roberts
Keyword(s):  
Tool Use ◽  
Pan Paniscus ◽  
Great Apes ◽  
Last Common Ancestor ◽  
Great Ape ◽  
Tropical Environments ◽  
Genus Homo ◽  
In Captivity ◽  
Game Hunting ◽  
The Tropics

The evolutionary proximity of the non-human great apes to us is often stressed in studies of animals, such as Kanzi, a bonobo (Pan paniscus) bred in captivity, that demonstrate their capacity to undertake tool-use and even utilize and comprehend language (Toth et al., 1993; Savage-Rumbaugh and Lewin, 1996; Schick et al., 1999). Likewise, studies of chimpanzees (Pan spp.) have highlighted the similarity of their emotional and empathetic capacities to those of humans (Parr et al., 2005; Campbell and de Waal, 2014). However, as noted by Savage- Rumbaugh and Lewin (1996), in palaeoanthropology and archaeology more broadly, the emergence of the hominin clade and, later, our species, is referenced in terms of the ‘chasm’ between ourselves and other extant great apes. Indeed, despite our genetic and behavioural proximity, extant non-human great ape taxa are often popularly characterized as living fossils of how we used to be. They are used as analogues for the subsistence and behaviour of the Last Common Ancestor (LCA) of humans and non-human great apes (Clutton-Brock and Harvey, 1977; Goodall, 1986; Foley and Lewin, 2004) and it is almost as if the fact that they still occupy the tropical environments in which these hominoids likely evolved (though see Elton, 2008) allows them to be treated as static comparisons (Figure 3.1). Since Darwin wrote the Descent of Man in 1871, the forests of the tropics, and their modern non-human great ape inhabitants, have tended to be perceived as being left behind as the hominin clade gained increasingly ‘human’ traits of tool-use, medium to large game hunting, and upright locomotion on open ‘savanna’ landscapes (Dart, 1925; Potts, 1998; Klein, 1999). From this perspective it is perhaps unsurprising that tropical forests are seen as alien to the genus Homo and its closest hominin ancestors.

scholarly journals Enteroviruses from Humans and Great Apes in the Republic of Congo: Recombination within Enterovirus C Serotypes

2020 ◽  
Vol 8 (11) ◽  
pp. 1779 ◽  
Author(s):  
Inestin Amona ◽  
Hacène Medkour ◽  
Jean Akiana ◽  
Bernard Davoust ◽  
Mamadou Lamine Tall ◽  
...  
Keyword(s):  
Animal Species ◽  
Great Apes ◽  
Great Ape ◽  
Human Feces ◽  
Republic Of Congo ◽  
Healthy Humans ◽  
The Family ◽  
Severe Infections ◽  
The Republic

Enteroviruses (EVs) are viruses of the family Picornaviridae that cause mild to severe infections in humans and in several animal species, including non-human primates (NHPs). We conducted a survey and characterization of enteroviruses circulating between humans and great apes in the Congo. Fecal samples (N = 24) of gorillas and chimpanzees living close to or distant from humans in three Congolese parks were collected, as well as from healthy humans (N = 38) living around and within these parks. Enteroviruses were detected in 29.4% of gorilla and 13.15% of human feces, including wild and human-habituated gorillas, local humans and eco-guards. Two identical strains were isolated from two humans coming from two remote regions. Their genomes were similar and all genes showed their close similarity to coxsackieviruses, except for the 3C, 3D and 5′-UTR regions, where they were most similar to poliovirus 1 and 2, suggesting recombination. Recombination events were found between these strains, poliovirus 1 and 2 and EV-C99. It is possible that the same EV-C species circulated in both humans and apes in different regions in the Congo, which must be confirmed in other investigations. In addition, other studies are needed to further investigate the circulation and genetic diversity of enteroviruses in the great ape population, to draw a definitive conclusion on the different species and types of enteroviruses circulating in the Republic of Congo.

scholarly journals Visually attending to a video together facilitates great ape social closeness

2019 ◽  
Vol 286 (1907) ◽  
pp. 20190488 ◽  
Author(s):  
Wouter Wolf ◽  
Michael Tomasello
Keyword(s):  
Human Study ◽  
Great Apes ◽  
Mental States ◽  
Social Bonding ◽  
External Stimulus ◽  
Great Ape ◽  
Board Games ◽  
Shared Experiences ◽  
Social Closeness ◽  
Psychological Mechanism

Humans create social closeness with one another through a variety of shared social activities in which they align their emotions or mental states towards an external stimulus such as dancing to music together, playing board games together or even engaging in minimal shared experiences such as watching a movie together. Although these specific behaviours would seem to be uniquely human, it is unclear whether the underlying psychology is unique to the species, or if other species might possess some form of this psychological mechanism as well. Here we show that great apes who have visually attended to a video together with a human (study 1) and a conspecific (study 2) subsequently approach that individual faster (study 1) or spend more time in their proximity (study 2) than when they had attended to something different. Our results suggest that one of the most basic mechanisms of human social bonding—feeling closer to those with whom we act or attend together—is present in both humans and great apes, and thus has deeper evolutionary roots than previously suspected.

Linguists play catchup with evolution

2001 ◽  
Vol 37 (3) ◽  
pp. 581-591 ◽  
Author(s):  
DEREK BICKERTON
Keyword(s):  
New York ◽  
Computational Linguistics ◽  
Language Evolution ◽  
Evolution Of Language ◽  
Cambridge University ◽  
Oxford University ◽  
Language And Communication ◽  
Georgetown University ◽  
The Brain ◽  
Oxford University Press

Donald Loritz, How the brain evolved language. New York & Oxford: Oxford University Press, 1999. Pp. 227.Lyle Jenkins, Biolinguistics : exploring the biology of language. Cambridge: Cambridge University Press, 2000. Pp. xiii+264.In the course of reviewing recent books on the evolution of language and communication (Dunbar 1996, Hauser 1996, Deacon 1997) I have had occasion to note that relatively few writers on these topics know much about linguistics, and to wish that more of them did. I should have remembered the old adage that one shouldn't wish for things - one might get them.For more than a century, linguists honored the Linguistic Society of Paris's ban on all discussion of language evolution; other disciplines went ahead with it regardless. Now that the centrality of language evolution to any study of our species is becoming apparent, linguists are desperately trying to play catchup, and the two volumes reviewed here both appeared in the last couple of years. Both authors are linguists, albeit hyphenated ones. Donald Loritz teaches computational linguistics at Georgetown University; his doctorate was in psycholinguistics. Lyle Jenkins works in the Biolinguistics Institute in Cambridge, MA; however, his doctorate was in unhyphenated linguistics. It would be difficult to find two authors whose ideas were more diametrically opposed.

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