International Journal of Primatology

, Volume 39, Issue 1, pp 127–140 | Cite as

Meat Eating by Wild Chimpanzees (Pan troglodytes schweinfurthii): Effects of Prey Age on Carcass Consumption Sequence

  • Ian C. GilbyEmail author
  • Daniel Wawrzyniak


Despite the fact that many primates consume vertebrate prey, surprisingly little is known about the nutritional benefits of eating meat for members of this diverse order. Although chimpanzees (Pan troglodytes) primarily eat plant source foods, especially fruit, they consume vertebrate prey with excitement, attesting to its nutritional value. Meat is a concentrated source of macro- and micronutrients; however, a carcass is not a uniform package. For example, the mammalian brain has considerably higher fat content than lean muscle tissue. The brain both has great caloric value and contains high concentrations of long-chain polyunsaturated fatty acids, which are critical for normal brain function. It thus represents a large, nutrient-dense source of energy and essential nutrients that should be highly valued. We filmed consumption of 29 arboreal monkeys by chimpanzees at Gombe National Park, Tanzania, and recorded the order in which general regions of the body were consumed. Overall, the head was significantly more likely to be targeted first than either the torso (including viscera) or appendages. This result was driven by subadult prey, 91% of which were eaten head-first, probably because their skulls were relatively easy for chimpanzees to break with a single bite. Possessors of adult prey (with robust skulls) often first selected the viscera, probably to harvest the fat-rich liver, thus maximizing immediate return in the face of the threat of harassment or theft. This has important implications for our understanding of the nutritional benefits of meat eating among primates, and highlights the need for future studies that measure the nutritional content of specific tissues and examine which are preferentially consumed or shared.


Diet Meat eating Meat-scrap hypothesis Pan troglodytes Polyunsaturated fatty acids Predation 



Funding was provided by the L. S. B. Leakey Foundation, Sigma Xi, The Animal Behavior Society, The Explorers Club, The Dayton–Wilkie Natural History Fund, the University of Minnesota’s Grants for Research Abroad Program, and the Department of Ecology, Evolution and Behavior at the University of Minnesota. We thank the Tanzanian Commission for Science and Technology, the Tanzania Wildlife Research Institute, Tanzania National Parks, and the Jane Goodall Institute for allowing us to conduct research at Gombe. We are extremely grateful to Anthony Collins, Shadrack Kamenya, Amri Almasi, Kadaha John, and Iddi Issa for their invaluable assistance in the field. Thanks also to Rob O’Malley, Zarin Machanda, Editor-in-Chief Joanna Setchell, Associate Editor Jessica Rothman, and two anonymous reviewers for valuable comments on the manuscript.


  1. Bailey, R. L., West Jr., K. P., & Black, R. E. (2015). The epidemiology of global micronutrient deficiencies. Annals of Nutrition and Metabolism, 66(2), 22–33. Scholar
  2. Bakewell, L., Burdge, G., & Calder, P. (2006). Polyunsaturated fatty acid concentrations in young men and women consuming their habitual diets. British Journal of Nutrition, 96(1), 93–99. Scholar
  3. Bates, D., Maechler, M., Bolker, B., Walker, S., Christensen, R. H. B., et al. (2014). lme4: Linear mixed-effects models using Eigen and S4.
  4. Biro, D., Sousa, C., & Matsuzawa, T. (2006). Ontogeny and cultural propagation of tool use by wild chimpanzees at Bossou, Guinea: Case studies in nut-cracking and leaf folding. In T. Matsuzawa, M. Tomonaga, & M. Tanaka (Eds.), Cognitive development in chimpanzees (pp. 476–508). Tokyo: Springer. Scholar
  5. Blumenschine, R. J. (1986). Carcass consumption sequences and the archaeological distinction of scavenging and hunting. Journal of Human Evolution, 15(8), 639–659. Scholar
  6. Blumenschine, R. J. (1991). Hominid carnivory and foraging strategies, and the socio-economic function of early archaeological sites. Philosophical Transactions of the Royal Society, B: Biological Sciences, 334(1270), 211–221. Scholar
  7. Boesch, C. (1994a). Cooperative hunting in wild chimpanzees. Animal Behaviour, 48(3), 653–667. Scholar
  8. Boesch, C. (1994b). Chimpanzees-red colobus monkeys: A predator-prey system. Animal Behaviour, 47(5), 1135–1148. Scholar
  9. Boesch, C., & Boesch, H. (1989). Hunting behavior of wild chimpanzees in the Taï National Park. American Journal of Physical Anthropology, 78(4), 547–573. Scholar
  10. Boesch, C., & Boesch-Achermann, H. (2000). The chimpanzees of the Taï Forest: Behavioural ecology and evolution. Oxford: Oxford University Press.Google Scholar
  11. Bosch, G., Hagen-Plantinga, E. A., & Hendriks, W. H. (2015). Dietary nutrient profiles of wild wolves: Insights for optimal dog nutrition? British Journal of Nutrition, 113(S1), S40–S54. Scholar
  12. Brenna, J. T. (2016). Long-chain polyunsaturated fatty acids and the preterm infant: a case study in developmentally sensitive nutrient needs in the United States. American Journal of Clinical Nutrition, 103(C), 606–615.CrossRefGoogle Scholar
  13. Conklin-Brittain, N. L., Wrangham, R. W., & Hunt, K. D. (1998). Dietary response of chimpanzees and cercopithecines to seasonal variation in fruit abundance. II. Macronutrients. International Journal of Primatology, 19(6), 971–998. Scholar
  14. Conklin-Brittain, N. L., Wrangham, R. W., & Smith, C. C. (2002). A two-stage model of increased dietary quality in early hominid evolution: The role of fiber. In P. Ungar & M. Teaford (Eds.), Human diet: Its origins and evolution (pp 61–76). Bergin and Garvey: Westport.Google Scholar
  15. Cordain, L., Watkins, B. A., & Mann, N. J. (2001). Fatty acid composition and energy density of foods available to African hominids: evolutionary implications for human brain development. World Review of Nutrition and Dietetics, 90, 144–161. Scholar
  16. Domínguez-Rodrigo, M., Bunn, H. T., Mabulla, A. Z. P., Baquedano, E., Uribelarrea, D., et al (2014). On meat eating and human evolution: a taphonomic analysis of BK4b (Upper Bed II, Olduvai Gorge, Tanzania), and its bearing on hominin megafaunal consumption. Quaternary International, 322–323, 129–152.CrossRefGoogle Scholar
  17. Eaton, S. B., Eaton III, S. B., Sinclair, A. J., Cordain, L., & Mann, N. J. (1998). Dietary intake of long-chain polyunsaturated fatty acids during the Paleolithic. World Review of Nutrition and Dietetics (Basel), 83, 12–23. Scholar
  18. Fan, P., & Jiang, X. (2009). Predation on giant flying squirrels (Petaurista philippensis) by black crested gibbons (Nomascus concolor jingdongensis) at Mt. Wuliang, Yunnan, China. Primates, 50(1), 45–49. Scholar
  19. Ferraro, J. V., Plummer, T. W., Pobiner, B. L., Oliver, J. S., Bishop, L. C., Braun, D. R., Ditchfield, P. W., Seaman, J. W., Binetti, K. M., Seaman, J. W., Hertel, F., & Potts, R. (2013). Earliest archaeological evidence of persistent hominin carnivory. PLoS ONE, 8(4), e62174. Scholar
  20. Food and Nutrition Board of the Institute of Medicine of the National Academies (2005). Dietary reference intakes for energy, carbohydrate, fiber, fat, fatty acids, cholesterol, protein, and amino acids. Washington, DC: National Academies Press.Google Scholar
  21. Gilby, I. C. (2006). Meat sharing among the Gombe chimpanzees: Harassment and reciprocal exchange. Animal Behaviour, 71(4), 953–963. Scholar
  22. Gilby, I. C., Eberly, L. E., Pintea, L., & Pusey, A. E. (2006). Ecological and social influences on the hunting behaviour of wild chimpanzees (Pan troglodytes schweinfurthii). Animal Behaviour, 72(1), 169–180. Scholar
  23. Gilby, I. C., Eberly, L. E., & Wrangham, R. W. (2008). Economic profitability of social predation among wild chimpanzees: individual variation promotes cooperation. Animal Behaviour, 75(2), 351–360. Scholar
  24. Gilby, I. C., Emery Thompson, M., Ruane, J. D., & Wrangham, R. W. (2010). No evidence of short-term exchange of meat for sex among chimpanzees. Journal of Human Evolution, 59(1), 44–53. Scholar
  25. Gilby, I. C., Machanda, Z. P., O’Malley, R. C., Murray, C. M., Lonsdorf, E. V., et al (2017). Predation by female chimpanzees: toward an understanding of sex differences in meat acquisition in the last common ancestor of Pan and Homo. Journal of Human Evolution, 110, 82–94. Scholar
  26. Goodall, J. (1986). The chimpanzees of Gombe: Patterns of behavior. Cambridge: Harvard University Press.Google Scholar
  27. Grayson, D. S., Kroenke, C. D., Neuringer, M., & Fair, D. A. (2014). Dietary omega-3 fatty acids modulate large-scale systems organization in the rhesus macaque brain. Journal of Neuroscience, 34(6), 2065–2074. Scholar
  28. Greiner, R. C. S., Zhang, Q., Goodman, K. J., Giussani, D. A., Nathanielsz, P. W., & Brenna, J. T. (1996). Linoleate, a-linolenate, and docosahexaenoate recycling into saturated and monounsaturated fatty acids is a major pathway in pregnant or lactating adults and fetal or infant rhesus monkeys. Journal of Lipid Research, 37, 2675–2686.Google Scholar
  29. Hannah, A. C., & McGrew, W. C. (1987). Chimpanzees using stones to crack open oil palm nuts in Liberia. Primates, 28(1), 31–46. Scholar
  30. Hardus, M. E., Lameira, A. R., Zulfa, A., Atmoko, S. S. U., de Vries, H., & Wich, S. A. (2012). Behavioral, ecological, and evolutionary aspects of meat-eating by Sumatran orangutans (Pongo abelii). International Journal of Primatology, 33(2), 287–304. Scholar
  31. Hladik, C. M. (1977). Chimpanzees of Gabon and chimpanzees of Gombe: Some comparative data on the diet. In T. H. Clutton-Brock (Ed.), Primate ecology: Studies of feeding and ranging behaviour in lemurs, monkeys and apes (pp. 481–501). London: Academic Press.Google Scholar
  32. Hoffman, L. C. (2008). The yield and nutritional value of meat from African ungulates, camelidae, rodents, ratites and reptiles. Meat Science, 80(1), 94–100. Scholar
  33. Hoffman, L. C., Laubscher, L. L., & Leisegang, K. (2013). Nutritional value of cooked offal derived from free-range rams reared in South Africa. Meat Science, 93(3), 696–702. Scholar
  34. Horrocks, L. A., & Yeo, Y. K. (1999). Health benefits of docosahexaenoic acid (DHA). Pharmacological Research, 40(3), 211–225. Scholar
  35. Kendel, M., Wielgosz-Collin, G., Bertrand, S., Roussakis, C., Bourgougnon, N., & Bedoux, G. (2015). Lipid composition, fatty acids and sterols in the seaweeds Ulva armoricana, and Solieria chordalis from Brittany (France): An analysis from nutritional, chemotaxonomic, and antiproliferative activity perspectives. Marine Drugs, 13(9), 5606–5628. Scholar
  36. Kyriacou, K., Blackhurst, D. M., Parkington, J. E., & Marais, A. D. (2016). Marine and terrestrial foods as a source of brain-selective nutrients for early modern humans in the southwestern cape, South Africa. Journal of Human Evolution, 97, 86–96. Scholar
  37. Liebermann, L. S. (1987). Biological consequences of animals versus plants as sources of fats, protein and other nutrients. In M. Harris & E. B. Ross (Eds.), Diet and human evolution (pp. 225–260). Philadelphia: Temple University Press.Google Scholar
  38. Mann, N. (2000). Dietary lean red meat and human evolution. European Journal of Nutrition, 39(2), 71–79. Scholar
  39. McGrew, W. C. (1974). Tool use by wild chimpanzees in feeding upon driver ants. Journal of Human Evolution, 3(6), 501–508. Scholar
  40. McGrew, W. C. (1992). Chimpanzee material culture. Cambridge: Cambridge University Press. Scholar
  41. McGrew, W. C. (2001). The other faunivory: Primate insectivory and early human diet. In C. B. Stanford & H. T. Bunn (Eds.), Meat-eating and human evolution (pp. 160–178). Oxford: Oxford University Press.Google Scholar
  42. Milton, K. (2003a). The critical role played by animal source foods in human (Homo) evolution. Journal of Nutrition, 133(11), 3886S–3892S. Scholar
  43. Milton, K. (2003b). Micronutritient intakes of wild primates: Are humans different? Comparative Biochemistry and Physiology A: Molecular and Integrative Physiology, 136(1), 47–59. Scholar
  44. Mitani, J. C., & Watts, D. P. (2001). Why do chimpanzees hunt and share meat? Animal Behaviour, 61(5), 915–924. Scholar
  45. National Research Council (2003). Nutrient requirements of nonhuman primates (2nd ed.). Washington, DC: National Academies Press.Google Scholar
  46. Newton-Fisher, N. E. (2014). Chimpanzee hunting behavior. In W. Henke & I. Tattersall (Eds.), Handbook of paleoanthropology (2nd ed., pp. 1–19). Berlin/Heidelberg: Springer-Verlag.Google Scholar
  47. O’Malley, R. C., & Power, M. L. (2012). Nutritional composition of actual and potential insect prey for the Kasekela chimpanzees of Gombe National Park, Tanzania. American Journal of Physical Anthropology, 149(4), 493–503. Scholar
  48. Pereira, P. M. C. C., & Vicente, A. F. R. B. (2013). Meat nutritional composition and nutritive role in the human diet. Meat Science, 93(3), 586–592. Scholar
  49. Perry, S., & Rose, L. (1994). Begging and transfer of coati meat by white-faced capuchin monkeys, Cebus capuchinus. Primates, 35(4), 409–415. Scholar
  50. Peterson, R. O., & Ciucci, P. (2003). The wolf as a carnivore. In L. D. Mech & L. Boitani (Eds.), Wolves: Behavior, ecology and conservation. (pp 104–130). Chicago: University of Chicago Press.Google Scholar
  51. Pruetz, J. D., Bertolani, P., Ontl, K. B., Lindshield, S., Shelley, M., & Wessling, E. G. (2015). New evidence on the tool-assisted hunting exhibited by chimpanzees (Pan troglodytes verus) in a savannah habitat at Fongoli, Sénégal. Royal Society Open Science, 2(4), 140507. Scholar
  52. Pusey, A. E., Oehlert, G. W., Williams, J. M., & Goodall, J. (2005). Influence of ecological and social factors on body mass of wild chimpanzees. International Journal of Primatology, 26(1), 3–31. Scholar
  53. R Development Core Team (2015). R: A language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing Scholar
  54. Reiner, W. B., Petzinger, C., Power, M. L., Hyeroba, D., & Rothman, J. M. (2014). Fatty acids in mountain gorilla diets: Implications for primate nutrition and health. American Journal of Primatology, 76(3), 281–288. Scholar
  55. Rose, L. M. (2001). Meat and the early human diet: Insights from Neotropical primate studies. In C. B. Stanford & H. T. Bunn (Eds.), Meat-eating and human evolution (pp. 141–159). Oxford: Oxford University Press.Google Scholar
  56. Rothman, J. M., Chapman, C. A., & Pell, A. N. (2008). Fiber-bound nitrogen in gorilla diets: Implications for estimating dietary protein intake of primates. American Journal of Primatology, 70(7), 690–694. Scholar
  57. Schaller, G. (1972). The Serengeti lion. Chicago: University of Chicago Press.Google Scholar
  58. Stahler, D. R., & Smith, D. W. (2006). Foraging and feeding ecology of the gray wolf (Canis lupus): Lessons from Yellowstone National Park, Wyoming, USA. Journal of Nutrition, 136(7), 1923S–1926S. Scholar
  59. Stanford, C. B. (1996). The hunting ecology of wild chimpanzees: Implications for the evolutionary ecology of Pliocene hominids. American Anthropologist, 98(1), 96–113. Scholar
  60. Stanford, C. B. (1999). The hunting apes: Meat eating and the origins of human behavior. Princeton: Princeton University Press.Google Scholar
  61. Strum, S. C. (1975). Primate predation: Interim report on the development of a tradition in a troop of olive baboons. Science, 187(4178), 755–757. Scholar
  62. Strum, S. C. (1983). Baboon cues for eating meat. Journal of Human Evolution, 12(4), 327–336. Scholar
  63. Takahata, Y., Hasegawa, T., & Nishida, T. (1984). Chimpanzee predation in the Mahale Mountains from August 1979 to May 1982. International Journal of Primatology, 5(3), 213–233. Scholar
  64. Takemoto, H. (2003). Phytochemical determination for leaf food choice by wild chimpanzees in Guinea, Bossou. Journal of Chemical Ecology, 29(11), 2551–2573. Scholar
  65. Teleki, G. (1973). The predatory behavior of wild chimpanzees. Lewisburg: Bucknell University Press.Google Scholar
  66. Teleki, G. (1981). The omnivorous diet and eclectic feeding habits of chimpanzees in Gombe National Park, Tanzania. In R. S. O. Harding & G. Teleki (Eds.), Omnivorous primates: Gathering and hunting in human evolution (pp. 303–343). New York: Columbia University Press.Google Scholar
  67. Tennie, C., Gilby, I. C., & Mundry, R. (2009). The meat-scrap hypothesis: small quantities of meat may promote cooperation in wild chimpanzees (Pan troglodytes). Behavioral Ecology and Sociobiology, 63(3), 421–431. Scholar
  68. Tennie, C., O’Malley, R. C., & Gilby, I. C. (2014). Why do chimpanzees hunt? Considering the benefits and costs of acquiring and consuming vertebrate versus invertebrate prey. Journal of Human Evolution, 71, 38–45. Scholar
  69. Uehara, S. (1997). Predation on mammals by the chimpanzee (Pan troglodytes). Primates, 38(2), 193–214. Scholar
  70. Whitesides, G. H. (1985). Nut-cracking by wild chimpanzees in Sierra Leone, West Africa. Primates, 26(1), 91–94. Scholar
  71. Williamson, C. S., Foster, R. K., Stanner, S. A., & Buttriss, J. L. (2005). Red meat in the diet. Nutrition Bulletin, 30(4), 323–355. Scholar
  72. Wilson, M. L. (2012). Long-term studies of the chimpanzees of Gombe National Park, Tanzania. In P. M. Kappeler & D. P. Watts (Eds.), Long-term field studies of primates (pp. 357–384). Berlin/Heidelberg: Springer-Verlag. Scholar
  73. Wrangham, R. W. (1975). The behavioural ecology of chimpanzees in Gombe National Park, Tanzania. Ph.D. thesis, Cambridge UniversityGoogle Scholar
  74. Wrangham, R. W., Conklin-Brittain, N. L., & Hunt, K. D. (1998). Dietary response of chimpanzees and cercopithecines to seasonal variation in fruit abundance: I. Antifeedants. International Journal of Primatology, 19(6), 949–970. Scholar
  75. Wu Leung, W. T., Busson, F., & Jardin, C. (1968). Food composition table for use in Africa. FAO-Nutrition Information Documents Series 3. Google Scholar

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Authors and Affiliations

  1. 1.School of Human Evolution and Social Change, and Institute of Human OriginsArizona State UniversityTempeUSA
  2. 2.Center for the Advanced Study of Human Paleobiology, Department of AnthropologyThe George Washington UniversityWashingtonUSA

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