古代DNA

Scientists have reconstructed the genome of Treponema pallidum from a 5,500-year-old skeleton in Colombia, marking the oldest known instance of this bacterium linked to syphilis and related diseases. The ancient strain diverged early in the pathogen's evolution, suggesting treponemal infections were diversifying in the Americas millennia before European contact. This discovery extends the genetic history of these diseases by over 3,000 years.

November 29, 2025 由 AI 报道

一项利用陕西省石峁遗址古代DNA的新研究揭示，4000年前的人类祭祀存在性别偏见，大规模墓葬中的牺牲者主要是男性，而贵族或精英的陪葬者则绝大多数为女性。该研究发表在《自然》杂志上，还突显了该遗址作为早期等级社会的角色，具有父系血统结构。