Sex differences in the use of natural hammers by wild chimpanzees: A preliminary report

@inproceedings{Boesch1981SexDI,
  title={Sex differences in the use of natural hammers by wild chimpanzees: A preliminary report},
  author={Christophe Boesch and Hedwige Boesch},
  year={1981}
}
The chimpanzees of the Tai National Park, Ivory Coast, use clubs and stones to open different species of nuts. An intriguing sex difference has been observed in this behavior. It is almost exclusively females that open Coula nuts directly in the tree and crack the very hard Panda nuts. Both techniques are difficult and imply either anticipating the need of a hammer and its transport, or exact positioning of the nut and precise dosage of the hits. The efficiency of females is superior to that of… CONTINUE READING

Citations

Publications citing this paper.
SHOWING 1-10 OF 45 CITATIONS

Animals and mushrooms consumed by bonobos (Pan paniscus): New records from lilungu (Ikela), Zaire

  • International Journal of Primatology
  • 1994
VIEW 5 EXCERPTS
CITES BACKGROUND
HIGHLY INFLUENCED

Primate Innovation: Sex, Age and Social Rank Differences

  • International Journal of Primatology
  • 2001
VIEW 5 EXCERPTS
CITES BACKGROUND
HIGHLY INFLUENCED

Why Don't Chimpanzees in Gabon Crack Nuts?

William C. McGrew, Rose Marie Ham, Lee J. T. White, Caroline E. G. Tutin, Michel Fernandez
  • International Journal of Primatology
  • 1997
VIEW 3 EXCERPTS
CITES BACKGROUND
HIGHLY INFLUENCED

References

Publications referenced by this paper.
SHOWING 1-9 OF 9 REFERENCES

Evolutionary implications of sex differences in chimpanzee predation and tool - use

W. MeGrew
  • 1979

Socialization and object manipulation of wild chimpanzees . In (

W. McGrew
  • 1977

Chimpanzees of Gombe National Park : 13 years of researeh . In ( I . Eibl - Eibesfeldt , Ed . ) , Hominisation und Verholtens

J. van Lawick-Goodall
  • 1975

Observational study of behavior : sampling methods

J. Altmann
  • Behavior
  • 1974

The behavior of free - living chimpanzees in the Gombe Stream Reserve

J. van Lawiek-Goodall
  • Animal Behavior Monographs
  • 1968