Wildlife Blog

Chimpanzee Personalities

ChimpanzeeA study published in the American Journal of Primatology this month revealed new information about chimpanzee personality traits. The five defining personality dimensions in chimps are: reactivity, dominance, openness, extroversion and agreeableness.

Researchers collected behavioral data for two years on 99 chimpanzees at the Michale E. Keeling Center for Comparative Medicine and Research in Bastrop, Texas. They rated the apes on behavioral descriptors such as boldness, jealousy, friendliness and stinginess.

According to lead author Hani Freeman, postdoctoral fellow with the Lester E. Fisher Center for the Study and Conservation of Apes at Lincoln Park Zoo. “From an academic standpoint, the findings can inform investigations into the evolution of personality. From a practical standpoint, caretakers of chimpanzees living in zoos or elsewhere can now tailor individualized care based on each animal’s personality thereby improving animal welfare.”

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