2004

• Anderson JR. , Myowa-Yamakoshi M, Matsuzawa T

  Contagious yawning in chimpanzees
  Proc Biol Sci., 271(Suppl 6): S468-S470

• Biro D, Inoue-Nakamura N, Tonooka R, Yamakoshi G, Sousa C, Matsuzawa T

  Cultural innovation and transmission of tool use in wild chimpanzees: evidence from field experiments
  Animal Cognition, Volume 6, Number 4, 213-223

• Celli ML. , Hirata S, Tomonaga M

  Socioecological influences on tool use in captive chimpanzees.
  International Journal of Primatology, 25, 1267-1281

• Granier N, Martinez L

  Première reconnaissance des chimpanzés Pan troglodytes verus dans la zone transfrontalière entre la Guinée et le Mali (Afrique de l’Ouest).
  Primatologie, 6:423–447

• Huffman MA. , Hirata S

  An experimental study of leaf swallowing in captive chimpanzees: insights into the origin of a self-medicative behavior and the role of social learning
  Primates, 45, 113-118.

• Humle T, Matsuzawa T

  Oil Palm Use by Adjacent Communities of Chimpanzees at Bossou and Nimba Mountains, West Africa
  International Journal of Primatology, Vol. 25, No. 3, 551-581

• Humle T, Matsuzawa T, Yamakoshi G

  Chimpanzee conservation and environmental education in Bossou and Nimba, Guinea, West Africa.
  Folia Primatologica, 75(S1):280-281

• Kawai N, Morokuma S, Tomonaga M, Horimoto N, Tanaka M

  Associative Learning and Memory in a Chimpanzee Fetus: Learning and Long-Lasting Memory Before Birth
  Developmental Psychobiology, Volume 44, Issue 2, pages 116-122

• Kuwahata H, Adachi I, Fujita K, Tomonaga M, Matsuzawa T

  Development of schematic face preference in macaque monkeys
  Behavioural Processes, 66, 17-21

• Matsuno T, Kawai N, Matsuzawa T

  Color classification by chimpanzees (Pan troglodytes) in a matching-to-sample task
  Behavioural Brain Research, 148, 157-165

• Morokuma S, Fukushima K, Kawai N, Tomonaga M, Satoh S, Nakano H

  Fetal habituation correlates with functional brain development
  Behavioural Brain Research, 153, 459-463

• Murai C, Tomonaga M, Kamegai K, Terazawa N, Yamaguchi MK.

  Do infant Japanese macaques (Macaca fuscata) categorize objects without specific training?
  Primates, 45:1-6

• Myowa-Yamakoshi M, Tomonaga M, Tanaka M, Matsuzawa T

  Imitation in neonatal chimpanzees (Pan troglodytes)
  Developmental Science, 7:4, pp 437-442

• Okamoto S, Tanaka M, Tomonaga M

  Looking back: The “representational mechanism”of joint attention in an infant chimpanzee (Pan troglodytes)
  Japanese Psychological Research, Volume 46, No. 3, 236-245

• Shimada MK. , Hayakawa S, Humle T, Fujita S, Hirata S, Sugiyama Y, Saitou N

  Mitochondrial DNA Genealogy of Chimpanzees in the Nimba Mountains and Bossou, West Africa
  American Journal of Primatology, 64, 261-275

• Sugiyama Y

  Demographic Parameters and Life History of Chimpanzees at Bossou, Guinea
  American Journal Of Physical Anthropology, 124:154-165

• Takemoto H

  Seasonal change in terrestriality of chimpanzees in relation to microclimate in the tropical forest.
  American Journal of Physical Anthropology, 124: 81-92

• Tomonaga M, Tanaka M, Matsuzawa T, Myowa-Yamakoshi M, Kosugi D, Mizuno Y, Okamoto S, Yamaguchi MK. , Bard KA.

  Development of social cognition in infant chimpanzees (Pan troglodytes): Face recognition, smiling, gaze, and the lack of triadic interactions
  Japanese Psychological Research, Volume 46, Issue 3, pages 227-235

• Ueno A, Matsuzawa T

  Food transfer between chimpanzee mothers and their infants
  Primates, 45:231-239

• Ueno A, Ueno Y, Tomonaga M

  Facial responses to four basic tastes in newborn rhesus macaques (Macaca mulatta) and chimpanzees (Pan troglodytes)
  Behavioural Brain Research, 154, 261-271

• Yamakoshi G

  Food Seasonality and Socioecology in Pan: Are West African Chimpanzees Another Bonobo?
  African Study Monographs, 25, 45-60

• Yamakoshi G, Myowa-Yamakoshi M

  New observations of ant-dipping techniques in wild chimpanzees at Bossou, Guinea.
  Primates, Volume 45, Number 1, 25-32

• Zamma K, Fujita S

  Genito-genital rubbing among the chimpanzees of Mahale and Bossou
  Pan Africa News, 11(2): 5-8