Researchers at the Max Delbrück Center for Molecular Medicine found that naked mole-rat queens suppress rival females' fertility through a sophisticated chemical olfactory signal rather than physical aggression. By collecting volatile body compounds via absorbent tubes and analyzing them with mass spectrometry, the team identified scent-based mechanisms aligned with the species' ~1,200 olfactory receptor genes. This discovery shifts the prevailing model of mammalian eusocial hierarchy from violence-driven dominance to chemical communication.
Background
Naked mole rats are eusocial mammals famous for their underground colonies, extreme longevity, cancer resistance, and single-breeding-queen social structure. Prior hypotheses attributed reproductive suppression primarily to physical bullying across vast tunnel networks, but the high cost of such enforcement in large colonies prompted renewed investigation into non-aggressive mechanisms.
- Source
- Ars Technica
- Published
- Jul 22, 2026 at 01:51 AM
- Score
- 6.0 / 10