Swiss research reveals female gorillas' sophisticated social strategies
University of Zurich study finds female gorillas actively avoid groups containing male relatives to prevent inbreeding, demonstrating complex social decision-making similar to humans.

Key Takeaways
- Female gorillas actively avoid groups containing male relatives to prevent inbreeding
- The study analyzed data collected over 20 years by the Dian Fossey Gorilla Fund
- Female gorillas seek out groups with familiar females they know
By The Numbers
They Said
"Because female mountain gorillas do not know with certainty who their fathers are, they might rely on a simple rule like 'avoid any group with males I grew up with'"