检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:Clara Moskowitz 曹小渔
出 处:《科技英语学习》2009年第5期14-16,共3页
摘 要:最近,科学家们对大约二十只成年野生黑猩猩进行了跟踪研究,发现在野生黑猩猩种群中存在以肉换性的行为。这就意味着,与雌猩猩分享食物的雄猩猩能够获得更多的交配机会,从而大大有利于繁育后代。黑猩猩是世上现存的与人类亲缘关系最近的物种,这一发现揭示了黑猩猩种群与人类狩猎采集社会的关联——无论是人类还是黑猩猩,生存的强者都有更多繁育后代的机会。The oldest profession isn't restricted to humans. A new study found that wild chimpanzees exchange meat for sex. By stealthily following a group of about 20 adult chimpanzees in GSte d' Ivoire' s Ta ? National Park, behavioral ecologists Cristina Gomes and Christophe Boesch of Max Planck Institute for Evolutionary Anthropology in Germany carefully noted which male chimpanzees copulated with which females. The researchers found that she-chimps put out more often for males that shared food with them at least once, compared to stingy males who never offered meat.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.222