中新网北京3月14日电 (记者 孙自法)国际著名学术期刊《自然》最新发表一篇演化研究论文认为，齿鲸(如虎鲸、白鲸和一角鲸)之所以演化出更年期可能是为了增加总体寿命。这项研究发现表明，更年期的演化使雌性能够帮助后辈生存，但不会与女儿或孙女竞争配偶。
英文标题：Why do toothed whales evolve menopause? New study suggests it’s for increased longevity and cooperative parenting
英文关键词：Toothed whales, menopause, evolutionary biology
英文新闻内容：A new study published in the prestigious academic journal Nature suggests that the evolution of menopause in toothed whales, such as killer whales, belugas, and narwhals, may be for the purpose of increasing overall lifespan. The study findings indicate that the evolution of menopause allows females to assist in the survival of their offspring without competing for mates with their daughters or granddaughters.
【来源】http://www.chinanews.com/gj/2024/03-14/10180113.shtml
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