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    3. 雜文軒 www.mrlled.com
      當前位置:首頁 > 科普知識 > 自然科普 > 【自然】猴子同性戀挑戰進化論 性交不單為繁殖后代科普

      【自然】猴子同性戀挑戰進化論 性交不單為繁殖后代科普

      投稿:twxx58544g  發布時間:2016-10-17  【手機版】  人氣:

      最新【自然】猴子同性戀挑戰進化論 性交不單為繁殖后代科普

      以下是雜文軒為整理收集的最新【自然】猴子同性戀挑戰進化論 性交不單為繁殖后代科普的文章,希望大家能夠喜歡!

      這里介紹一篇【自然】猴子同性戀挑戰進化論 性交不單為繁殖后代科普。感興趣興趣的小伙伴一起來看看吧。

      雌性的日本短尾猴似乎更加喜歡同性戀,日益增加的證據顯示,如同人類一樣,一些動物階段性地選擇同伴以達到性交或社交的目的,并非像達爾文的《進化論》所認為的那樣單純是為了繁殖后代。

      加拿大亞伯達Lethbridge大學的心理學家保羅·瓦西發現,雌性的日本短尾猴似乎更加喜歡同性戀。瓦西研究了日本京都附近的嵐山的猴群。昨天,他在美國先進科學協會年會上公布了自己的研究結果。

      瓦西發現,雌性短尾猴通常與同性猴子結伴------------一同覓食、睡覺、洗澡。它們爬到同伴的背上假裝做愛。企圖向它們求愛的雄性猴子十有九只都會碰一鼻子灰。這種同性戀的傾向是如何形成的仍然是個謎。這些動物似乎并不是為了尋求同性伴侶的照顧,它們的同性戀舉動也不像是為了吸引雄性猴子而在作秀。而且,雌性短尾猴的反常性傾向并沒有影響它們繁殖后代的機會。瓦西猜測,雌性伴侶較少攻擊性,更有合作精神,也許相處起來更愉快。

      斯坦福大學的進化生物學家瓊·拉夫加登指出,除日本短尾猴之外,至少還有14種動物------------包括加拿大鵝、果蝠------------傾向于同性戀行為。從前這一現象被認為是生物學中的例外,而非普遍規律。她說:”日益增長的證據表明,也許我們應該承認,進化生物學的某些基礎觀念并不正確。“拉夫加登推測,性交并不單單為繁殖后代,也是為了建立紐帶和關系,她將這一觀點稱為”社會淘汰“,而達爾文的”性淘汰“論即生物繁殖后代的努力推動了它們的進化。

      5 5 e t.n e t

      上面就是有關【自然】猴子同性戀挑戰進化論 性交不單為繁殖后代科普的內容,各位喜歡科普的小朋友可以繼續瀏覽雜文軒[ 55et.net ]相關的內容。


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