作者：Yang, Jie; Li, Wei; Chen, Ai-lin; Du, Kun-sheng; Peng, Xiao; Wang, Yu; Zhang, Xi-guang; Smith, Martin R.
作者单位：Yunnan University; Yuxi Normal University; Yunnan University; Durham University
摘要：The Cambrian evolutionary radiation is noted for its profusion of bizarre and unfamiliar body forms, many of which illuminate the early ancestry of major animal groups. The spine-covered fossil Shishania aculeata (Cambrian Stage 4, Yunnan, China) has been interpreted as intermediate between mollusks and their lophotrochozoan ancestors. Our new material challenges this interpretation. We propose taphonomic explanations for apparent molluscan features and instead identify prominent anatomical si...
作者：Martignoni, Maria
作者单位：University System of Georgia; Georgia Institute of Technology
作者：Xu, Liaoyi; Kun, Eucharist; Pandey, Devansh; Wang, Joyce Y.; Brasil, Marianne F.; Singh, Tarjinder; Narasimhan, Vagheesh M.
作者单位：University of Texas System; University of Texas Austin; Western Washington University; Columbia University; Cornell University; Weill Cornell Medicine; NewYork-Presbyterian Hospital; Columbia University; University of Texas System; University of Texas Austin
摘要：Human pelvic evolution following the human-chimpanzee divergence is thought to result in an obstetrical dilemma, a mismatch between large infant brains and narrowed female birth canals, but empirical evidence has been equivocal. By using deep learning on 31,115 dual-energy x-ray absorptiometry scans from UK Biobank, we identified 180 loci associated with seven highly heritable pelvic phenotypes. Birth canal phenotypes showed sex-specific genetic architecture, aligning with reproductive functio...
作者：Awad, Yumna Gamal
作者单位：Egyptian Knowledge Bank (EKB); Mansoura University
