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Chimpanzees Help Each Other upon Request
BACKGROUND: The evolution of altruism has been explained mainly from ultimate perspectives. However, it remains to be investigated from a proximate point of view how and in which situations such social propensity is achieved. We investigated chimpanzees' targeted helping in a tool transfer para...
| Autores principales: | , , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
Public Library of Science
2009
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2757899/ https://www.ncbi.nlm.nih.gov/pubmed/19826478 http://dx.doi.org/10.1371/journal.pone.0007416 |