Kin selection

Definition

A biological phenomenon where individuals increase their own genetic success through behaviors that help relatives reproduce.

Etymology

The term combines 'kin', meaning 'relatives', from Old English 'cynn', and 'selection', from Latin 'selectio', meaning 'choice'.

Example

Kin selection explains why worker bees in a hive sacrifice their own reproduction to help raise their sisters' offspring, increasing the overall reproductive success of their shared genes.

Related Terms

• Hamilton's rule
• Altruism
• Inclusive fitness

Usage Notes

Kin selection is a key concept in understanding social behavior in many species, including insects.