他们一直与各种族群的成员们和平地生活和工作。

They've been living and working peacefully with members of various ethnic groups.

《柯林斯英汉双解大词典》

凯瑟克拉(Kasekela)族群是冈贝黑猩猩研究中研究人员们主要关注的对象，自1974年开始，这个族群就对较小的卡哈玛(Kahama)族群发动了一系列的血腥袭击。

Chimpanzee politics could also be violent. Beginning in 1974, the Kasekela community (the main focus of Gombe research) conducted a series of bloody raids against a smaller subgroup called Kahama.

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事实却也不尽然，研究人员发现，在第二年就更换了伙伴的雌狒狒中，有百分之八十们它们先前的伙伴仍在族群之内。

The researchers found that 80 percent of females that switched close grooming partners from one year to the next did so despite that fact that their earlier companion was still in the group.

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