In contrast to many other primates, it is the bond between each individual female and the silverback, rather than bonds between the females that hold the group together. Upon reaching maturity, most males and females leave the group in which they were born. The females usually join another group or a lone young adult male, whereas the males remain solitary until they can attract females and establish their own groups (Yamagiwa, 2003). Both natal dispersal and secondary dispersal (subsequent transfer to yet another group) occur among female eastern gorillas. The structure and group cohesion seems to serve mainly to avoid predators (Yamagiwa & Kahekwa, 2001).
Comments
值得一提的是灵长类与啮齿类在南美的演化与旧大陆截然相反，灵长类在南美的体型越演化越小，演化成了类似旧大陆松鼠的树栖生态位。 而啮齿类在南美的体型则越演化越大，演化成了类似旧大陆中小型陆生有蹄动物，以及水栖河马的生态位[笑哭]！
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我记得当初那些反对魏格纳的人也是全世界到处画陆桥，陆桥简直就是个万能垃圾桶。
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简鼻猴类最早分化的是菲律宾的眼镜猴，然后是各种新大陆猴，旧大陆的狭鼻猴中被称为“猴”的那部分当中，猕猴亚科是杂食动物，疣猴亚科是纯素食的。虽然新大陆猴的体型大多没有10kg，大部分树栖，不过史前的南美洲曾经有20多kg的新大陆猴，生活在草原环境
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6分18秒，“巨蟒”改为“巨蚺”，南美洲无蟒科
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我早在自然博物馆里面就看见，灵长类分两种，旧世界猴和新世界猴。旧世界猴主要分布在亚洲和非洲，又称狭鼻小目，简鼻猴，意思是鼻孔朝前，嗅觉较弱，手指能对握。新世界猴分布在美洲，鼻孔朝两侧翻，手指不能对握。据说新世界猴就是在非洲和拉美隔得还很近的时候，借助天然漂浮物乘着风暴和海流漂过去的。
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鳖科和鼍亚科如何在东亚和北美实现共同分布的
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我提一个假说，非洲→亚欧大陆→白令海峡→北美→南美
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我不太能赞同猴子靠着飘在海上的木头就能渡过大洋。比八仙还厉害。。。如果他们有如此坚韧不拔的迁徙精神，那全世界应该到处都有他们的身影。怎么还存在分布区域？大海那么远他们都跨过去了，陆地区域还跨越不了吗？[doge]
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因为大猩猩把天赋带到了南海岸
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不过在我的记忆中，山地大猩猩很多情况下雄性离群更少，反而是西部低地大猩猩离群更多
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晚点看，还不错很少有灵长类的内容
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這個問題就要問碧昂絲了
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假说四：曾经有个猴界哥伦布......
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巴拿马陆桥之前，始新世时期啮齿类和灵长类靠漂洋过海从非洲来到南美，中新世时期浣熊科从北美跳岛来到南美
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清风明月和地球野猫也是合作了一波[星星眼][星星眼][星星眼]
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希望狠狠拷打卡宝看世界这个虎吹[吃瓜][吃瓜][吃瓜]
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有没有可能是白令陆桥？我瞎说的。
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第一
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也不光是靈長類，豚鼠與豪豬也從非洲到了南美
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In contrast to many other primates, it is the bond between each individual female and the silverback, rather than bonds between the females that hold the group together. Upon reaching maturity, most males and females leave the group in which they were born. The females usually join another group or a lone young adult male, whereas the males remain solitary until they can attract females and establish their own groups (Yamagiwa, 2003). Both natal dispersal and secondary dispersal (subsequent transfer to yet another group) occur among female eastern gorillas. The structure and group cohesion seems to serve mainly to avoid predators (Yamagiwa & Kahekwa, 2001).
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