EPISODE · Aug 4, 2026 · 25 MIN
1384-裸鼹鼠女王的气味抑制机制
from 聊聊Sci
这份研究揭示了裸鼹鼠维持其独特真社会性结构的化学机制。科学家发现，蚁后级别的女王会分泌一种名为肉豆蔻酸异丙酯 (IPM) 的特定物质，该成分在女王的阴道分泌物中含量最高，且与排卵周期密切相关。通过嗅觉系统的检测，这种化合物能显著提升非繁殖个体体内的催乳素水平并抑制孕酮分泌，从而在生理上阻断其生育能力。实验证明，持续提供这种人工合成的物质能够防止群体在失去女王后发生动乱，而一旦撤除，成员间便会爆发激烈的阶级竞争与繁殖行为。该发现首次明确了哺乳动物中由女王操纵的化学抑制信号，说明了脊椎动物与昆虫在社会化演化路径上的高度相似性。References:Khallaf M A, Hart D W, Luo W, et al. A queen odour mediates reproductive suppression in a eusocial mammal[J]. Nature, 2026: 1-9.前往小宇宙评论区与主播互动
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