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| DOI | 10.1038/s41559-021-01425-z |
| Sex differences in the pelvis did not evolve de novo in modern humans | |
| Fischer B.; Grunstra N.D.S.; Zaffarini E.; Mitteroecker P. | |
| 发表日期 | 2021 |
| ISSN | 2397-334X |
| 起始页码 | 625 |
| 结束页码 | 630 |
| 卷号 | 5期号:5 |
| 英文摘要 | It is commonly assumed that the strong sexual dimorphism of the human pelvis evolved for delivering the relatively large human foetuses. Here we compare pelvic sex differences across modern humans and chimpanzees using a comprehensive geometric morphometric approach. Even though the magnitude of sex differences in pelvis shape was two times larger in humans than in chimpanzees, we found that the pattern is almost identical in the two species. We conclude that this pattern of pelvic sex differences did not evolve de novo in modern humans and must have been present in the common ancestor of humans and chimpanzees, and thus also in the extinct Homo species. We further suggest that this shared pattern was already present in early mammals and propose a hypothesis of facilitated variation as an explanation: the conserved mammalian endocrine system strongly constrains the evolution of the pattern of pelvic differences but enables rapid evolutionary change of the magnitude of sexual dimorphism, which in turn facilitated the rapid increase in hominin brain size. ? 2021, The Author(s), under exclusive licence to Springer Nature Limited. |
| 语种 | 英语 |
| scopus关键词 | animal; female; hominid; human; male; Pan troglodytes; pelvis; sexual characteristics; Animals; Female; Hominidae; Humans; Male; Pan troglodytes; Pelvis; Sex Characteristics |
| 来源期刊 | Nature Ecology & Evolution
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/256969 |
| 作者单位 | Department of Evolutionary Biology, Unit for Theoretical Biology, University of Vienna, Vienna, Austria; Konrad Lorenz Institute for Evolution and Cognition Research, Klosterneuburg, Austria; Mammal Collection, Natural History Museum Vienna, Vienna, Austria; Department of Cell Biology and Anatomy, University of Calgary, Calgary, AB, Canada |
| 推荐引用方式 GB/T 7714 | Fischer B.,Grunstra N.D.S.,Zaffarini E.,et al. Sex differences in the pelvis did not evolve de novo in modern humans[J],2021,5(5). |
| APA | Fischer B.,Grunstra N.D.S.,Zaffarini E.,&Mitteroecker P..(2021).Sex differences in the pelvis did not evolve de novo in modern humans.Nature Ecology & Evolution,5(5). |
| MLA | Fischer B.,et al."Sex differences in the pelvis did not evolve de novo in modern humans".Nature Ecology & Evolution 5.5(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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