Scientists update Hamilton’s rule with powerful new math, revealing the many ways altruism and cooperation can thrive in living systems.

Hamilton’s rule—the mathematical relation quantifying the idea that genetically related subjects are more likely to help each other, even at the expense of their own survival—has been observed in many ...

Hamilton's rule, introduced in the 1960s, says that altruism—helping others at your own expense—can evolve when the benefits to others, multiplied by how closely related they are to you, outweigh the ...

Hamilton’s theory of inclusive fitness is a widely used framework for studying the evolution of social behavior, but controversy surrounds its status. Hamilton originally derived his famous rb > c ...