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Biology

Kin Selection and Altruistic Behavior in Eusocial Naked Mole-Rats

Quick fact

Naked mole-rats are one of only two mammals known to be eusocial; in a colony, up to 80% of individuals never reproduce, yet they help rear their siblings, who are highly related due to inbreeding within a single family group.

Why this is interesting

Consider a mammal that lives like an insect: a queen reproduces while her many offspring live as workers, digging tunnels and defending the colony. How could evolution favor such selfless helpers who never have their own young?

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