Story perspectives
Female Mammals Outlive Males by 12-13%, Study Finds
10/7/2025
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Story summary
- Max Planck Institute finds female mammals live longer than males across 528 species by 12-13%.
- Genetics, mating behaviors, and caregiving roles explain the gap.
- In polygamous species, male competition causes injuries and stress, shortening lifespans.
- Monogamous birds show longer male lifespans due to shared parental duties.
- Evolutionary traits drive longevity; globally, women outlive men, with gaps widening in Sweden.
