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1·Rhesus macaques, a mainstay of medical and psychological research, have long failed the mark test.

恒河猴，被用作医学和心理学研究的主题，一直未能通过标记测试。

2·The primate center here, which is part of Oregon Health and Science University, has more than 4,000 monkeys, mostly rhesus macaques.

这个灵长类动物研究中心隶属俄勒冈健康科技大学，养着超过4000只猴子，绝大多数是恒河猴。

3·The primate center here, which is part of Oregon Health and Science University, has more than 4, 000 monkeys, mostly rhesus macaques.

这个灵长类动物研究中心隶属俄勒冈健康科技大学，养着超过4000只猴子，绝大多数是恒河猴。

4·The research started with 30 rhesus macaques in 1989 to chart the health effects of a calorie-restricted diet and expanded in 1994 with the addition of 46 more.

这项研究始于30猕猴，以图在1989年对健康影响的限制热量饮食和扩大1994年增加了46个以上。

5·For their study, Arnsten and colleagues spent years training six rhesus macaques of various ages how to play simple video games that require the use of working memory.

为了他们的研究，昂司顿(Arnsten)和她的同事们花了数年时间来训练6只不同年纪的恒河猴怎么去玩简单的电子游戏，使他们需要使用工作记忆。

6·This is in stark contrast to rhesus macaques, in which persistent SIV replication and resultant high viral loads are associated with high levels of immune activation and progression to AIDS.

这和恒河猴短尾猿中的研究是鲜明的对比，恒河猴中持续的SIV复制以及因此而致的病毒高负荷和高水平的免疫激活并进展到AIDS相关。