She said that comparisons of the viruses that cause AIDS in chimpanzees and humans could lead to new insights into the responses of the immune systems in both species.

她说将引起人类艾滋病的病毒与引起黑猩猩艾滋病的病毒相比较会产生在这两种物种中免疫系统反应的新见解。

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But they added they cannot rule out the possibility that the new strain arose in chimpanzees and moved into gorillas and then humans, or moved directly from chimpanzees to both gorillas and humans.

但是，他们补充道，不能排除如下的可能性：这种新毒株产生于黑猩猩身上，然后传播给大猩猩，再然后传给了人类，或者从黑猩猩直接传播给了大猩猩以及人类。

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Young female chimpanzees like to play with sticks as if they were dolls, according to a new study in the journal Current Biology.

期刊《时下生物学》最新研究发现，少年母猩猩喜欢玩棍棒，仿佛那就是她们的洋娃娃一样。

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The research, published in the Plos One journal, has shed new light on the mental capacities of chimpanzees.

BBC: Monogamy shunned by female chimps

But the new study, which compares chimpanzees to young children, makes de Waal rethink that view.

CNN: Morality: It's not just for humans

Frederick Coulston began using chimpanzees for toxicology tests in the 1940s at Holloman Air Force Base in Alamogordo, New Mexico.

CNN: Laboratory chimps get a new lease on life