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Trajectories and Constraints in Brain Evolution in Primates and Cetaceans

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Human Evolution

Abstract

A negative allometric relationship between body mass (BM) and brain size (BS) can be observed for many vertebrate groups. In the past decades, researchers have proposed several hypotheses to explain this finding, but none is definitive and some are possibly not mutually exclusive. Certain species diverge markedly (positively or negatively) from the mean of the ratio BM/BS expected for a particular taxonomic group. It is possible to define encephalization quotient (EQ) as the ratio between the actual BS and the expected brain size. Several cetacean species show higher EQs compared to all primates, except modern humans. The process that led to big brains in primates and cetaceans produced different trajectories, as shown by the organizational differences observed in every encephalic district (e.g., the cortex). However, these two groups both convergently developed complex cognitive abilities. The comparative study on the trajectories through which the encephalization process has independently evolved in primates and cetaceans allows a critical appraisal of the causes, the time and the mode of quantitative and qualitative development of the brain in our species and in the hominid evolutionary lineage.

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References

  1. Aiello L, Dean C (1990) An introduction to human evolutionary anatomy. Academic Press, Oxford, UK

    Google Scholar 

  2. Allison T, Cicchetti DH (1976) Sleep in mammals: ecological and constitutional correlates. Science 194:732–734

    Article  Google Scholar 

  3. Bejder L, Hall BK (2002) Limbs in whales and limblessness in other vertebrates: mechanisms of evolutionary and developmental transformation and loss. Evolut Develop 4:445–458

    Article  Google Scholar 

  4. Domenici P, Batty RS, Simila T, Ogam E (2000) Killer whales (Orcinus orca) feeding on schooling herring (Clupea harengus) using underwater tail-slaps: kinematic analyses of field observations. J Exp Biol 203:283–294

    Google Scholar 

  5. Dunbar RIM (1998) The social brain hypothesis. Evol Anthropol 6:178–190

    Article  Google Scholar 

  6. Elton S, Bishop LC, Wood B (2001) Comparative context of Plio–Pleistocene hominin brain evolution. J Hum Evol 41:1–27

    Article  Google Scholar 

  7. Emerson SB, Bramble DM (1993) Scaling, allometry, and skull design. In: Hanken J, Hall BK (eds) The skull, vol 3. The University of Chicago Press, Chicago, pp 384–421 (p 460)

    Google Scholar 

  8. Gozzano S (ed) (2001) Mente Senza Linguaggio. Editori Riuniti, Roma, p 166

  9. Gingerich PD (1998) Paleobiological perspectives on Mesonychia, Archaeoceti, and the origin of whales. In: Thewissen JGM (ed) Emergence of whales: evolutionary patterns in the origin of Cetacea. Plenum, New York, pp 423–449 (p 492)

    Google Scholar 

  10. Holloway RL, Broadfield DC, Yuan MS, Schwartz JH, Tattersall I (2004) The human fossil record, brain endocasts: the paleoneurological evidence, vol 3. Wiley-Liss, New York, p 315

    Google Scholar 

  11. Janik VM (2000) Whistle matching in wild bottlenose dolphins (Tursiops truncatus). Science 289:1355–1357

    Article  Google Scholar 

  12. Jerison HJ (1973) Evolution of the brain and intelligence. Academic Press, San Diego, p 482

    Google Scholar 

  13. Jerison HJ (1985) Animal intelligence as encephalization. Philos. Trans. R. Soc. London Ser. B 308:21–35

    Article  Google Scholar 

  14. Iseki S, Wilkie AO, Morriss-Kay GM (1999) Fgfr1 and Fgfr2 have distinct differentiation- and proliferation-related roles in the developing mouse skull vault. Development 126:5611–5620

    Google Scholar 

  15. Iseki S, Wilkie AO, Heath JK, Ishimaru T, Eto K, Morriss-Kay GM (1997) Fgfr2 and osteopontin domains in the developing skull vault are mutually exclusive and can be altered by locally applied FGF2. Development 124:3375–3384

    Google Scholar 

  16. Luo Z-X, Eastman ER (1995) The petrosal and inner ear structures of a squalodontoid whale: Implications for evolution of hearing in odontocetes. J Vertebr Paleontol 15:431–442

    Article  Google Scholar 

  17. Marino L (2004) Cetacean brain evolution: multiplication generates complexity. Int J Comp Psychol 17:1–16

    Google Scholar 

  18. Marino L (1998) A comparison of encephalization between odontocete cetaceans and anthropoid primates. Brain Behav Evol 51:230–238

    Article  Google Scholar 

  19. Marino L, McShea DW, Uhen MD (2004) Origin and evolution of large brains in toothed whales. Anat Rec 281A:1247–1255

    Article  Google Scholar 

  20. Marshall CD, Reep RL (1995) Manatee cerebral cortex: cytoarchitecture of the caudal region in Trichechus manatus latirostris. Brain Behav Evol 45:1–18

    Article  Google Scholar 

  21. Martin RD (1996) Scaling of the mammalian brain: maternal energy hypothesis. News Physiol Sci 11:149–156

    Google Scholar 

  22. Martin RD (1981) Relative brain size and basal metabolic rate in terrestrial vertebrates. Nature 293:57–60

    Article  Google Scholar 

  23. Noad MJ, Cato DH, Bryden MM, Jenner M-N, Jenner KCS (2000) Cultural revolution in whale song. Nature 408:537

    Article  Google Scholar 

  24. Oelschläger HHA, Buhl EH (1985) Occurrence of an olfactory bulb in the early development of the harbour porpoise (Phocoena phocoena L.). In: Duncker HR, Fleischer G (eds) Functional morphology of vertebrates. Fortschr Zool 30:695–698

  25. Oelschläger HHA, Kemp B (1998) Ontogenesis of the sperm whale brain. J Comp Neurol 399:210–228

    Article  Google Scholar 

  26. Pagel MD, Harvey PH (1988) How mammals produce large-brained offspring. Evolution 42:948–957

    Article  Google Scholar 

  27. Rakic P, Kornack DR (2001) Neocortical expansion and elaboration during primate evolution: a view from neuroembryology. In: Falk D, Gibson KR (eds) Evolutionary anatomy of the primate cerebral cortex. Cambridge University Press, Cambridge, pp 30–56 (p 362)

    Google Scholar 

  28. Reep RL, O’Shea TJ (1990) Regional brain morphometry and lissencephaly in the Sirenia. Brain Behav Evol 35:185–194

    Article  Google Scholar 

  29. Reiss D, Marino L (2001) Mirror self recognition in the bottlenose dolphin: a case of cognitive convergence. Proc Natl Acad Sci USA 98:5937–5942

    Article  Google Scholar 

  30. Rendell L, Whitehead H (2001) Culture in whales and dolphins. Behav Brain Sci 24:309–382

    Article  Google Scholar 

  31. Richardson MK, Oelschläger HHA (2002) Time, pattern, and heterochrony: a study of hyperphalangy in the dolphin embryo flipper. Evolut Develop 4:435–444

    Article  Google Scholar 

  32. Ridgway SH, Brownson RH (1984) Relative brain sizes and cortical surface areas of odontocetes. Acta Zool Fenn 172:149–152

    Google Scholar 

  33. Ridgway SM, Harrison R (eds) (1985) Handbook of marine mammals, vol 3. Academic Press, London, p 362

  34. Roth von G, Wullimann MF (2000) Brain evolution and cognition. Wiley-Spektrum, Heidelberg, p 616

    Google Scholar 

  35. Roth G, Dicke U (2005) Evolution of the brain and intelligence. Trends Cogn Sci 9:250–257

    Article  Google Scholar 

  36. Savage-Rumbaugh S, Shanker SG, Taylor TJ (1998) Apes, language and the human mind. Oxford University Press, Oxford, p 256

    Google Scholar 

  37. Schoenemann PT (2004) Body size scaling and body composition in mammals. Brain Behav Evol 63:47–60

    Google Scholar 

  38. Semendeferi K, Lu A, Schenker N, Damasio H (2002) Humans and great apes share a large frontal cortex. Nat Genet 5:272–276

    Google Scholar 

  39. Stephan H, Frahm H, Baron G (1981) New and revised data on volumes of brain structures in insectivores and primates. Folia Primatol (Basel) 35:1–29

    Article  Google Scholar 

  40. Uhen MD (2004) Form, function, and anatomy of Dorudon atrox (Mammalia, Cetacea): an Archaeocete from the Middle to Late Eocene of Egypt. University of Michigan Papers on Paleontology 34, pp 1–222

  41. Wood B, Strait D (2004) Patterns of resource use in early Homo and Paranthropus. J Hum Evol 46:119–162

    Article  Google Scholar 

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Acknowledgements

Part of this work has been presented as a poster at the First Meeting of the Italian Society of Evolutionary Biology, Florence, and part as an oral communication at the 16th Congress of Italian Anthropologists, Genova. We thank Prof. Francesco Mallegni, who invited us to publish in this current volume of Human Evolution. We also wish to thank Ian Tattersall for his suggestions and encouragement.

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Authors and Affiliations

  1. Scuola Normale Superiore di Pisa, Piazza dei Cavalieri, 6, 56100, Pisa, Italy

    G. Tartarelli

  2. Dipartimento di Scienze della Terra, Università degli studi di Pisa, Via Santa Maria, 53, 56126, Pisa, Italy

    M. Bisconti

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  1. G. Tartarelli
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  2. M. Bisconti
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Correspondence to G. Tartarelli.

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Tartarelli, G., Bisconti, M. Trajectories and Constraints in Brain Evolution in Primates and Cetaceans. Human Evolution 21, 275–287 (2006). https://doi.org/10.1007/s11598-006-9027-4

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  • DOI: https://doi.org/10.1007/s11598-006-9027-4

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