Main findings
Cooperation and prosociality:
- No group-level cooperation and prosociality was found
- Low inter-individual tolerance was found
Personality:
- Three personality traits were evaluated in the group:
- Activity
- Sociability
- Exploration – significantly predicted the (low instances of) cooperative success
Dominance rank, age, sex:
- Individuals that were more distant in the dominance hierarchy tended to cooperate more
- Activity significantly decreased with age
- No effect of sex was found
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