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自然界最“奇葩”的阴茎：雄性鸭子共处时阴茎会变长

 7 years ago
source link: http://tech.sina.com.cn/2017-11-07/doc-ifynnnsc8149318.shtml
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新浪科技讯北京时间11月7日消息，据国外媒体报道，雄性鸭子具有自然界中最为“奇葩”的阴茎之一，不仅长度令人惊叹，而且形状如同螺丝锥，堪称两性间性别战争带来的又一个令人瞠目结舌的结果。一项新研究显示，雄性鸭子所处的社交环境会对它们的阴茎长度产

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