作者
Brian M Wood, Jacob D Negrey, Janine L Brown, Tobias Deschner, Melissa Emery Thompson, Sholly Gunter, John C Mitani, David P Watts, Kevin E Langergraber
发表日期
2023/10/27
期刊
Science
卷号
382
期号
6669
页码范围
eadd5473
出版商
American Association for the Advancement of Science
简介
Among mammals, post-reproductive life spans are currently documented only in humans and a few species of toothed whales. Here we show that a post-reproductive life span exists among wild chimpanzees in the Ngogo community of Kibale National Park, Uganda. Post-reproductive representation was 0.195, indicating that a female who reached adulthood could expect to live about one-fifth of her adult life in a post-reproductive state, around half as long as human hunter-gatherers. Post-reproductive females exhibited hormonal signatures of menopause, including sharply increasing gonadotropins after age 50. We discuss whether post-reproductive life spans in wild chimpanzees occur only rarely, as a short-term response to favorable ecological conditions, or instead are an evolved species-typical trait as well as the implications of these alternatives for our understanding of the evolution of post-reproductive life …
学术搜索中的文章
BM Wood, JD Negrey, JL Brown, T Deschner… - Science, 2023