01Against the Social Darwinists
By the 1880s, "survival of the fittest" had been recruited to justify laissez-faire capitalism, imperial conquest, and the immiseration of the poor. The argument ran: nature is a war of all against all; only the strongest survive; this is natural and therefore right; any interference with market competition or imperial expansion distorts the natural order.
Kropotkin, who had spent years as a naturalist in Siberia and Manchuria, thought this was bad science. Not bad values — bad observation. The people making this argument hadn't spent much time watching animals actually survive.
02What he found in Siberia
What Kropotkin observed in Siberia was not primarily competition. It was cooperation. Animals — wolves, horses, deer, birds — survived the brutal conditions of the subarctic not through individual competition but through collective behavior: warning each other of predators, sharing food sources, collective defense, migration in coordinated groups.
The species he observed that were best at cooperation were also the most successful at surviving harsh conditions. The ones that competed individually — that tried to go it alone — died. The mutual aid of the group was the primary survival mechanism, not an exception to it.
03Mutual aid as evolutionary factor
Mutual Aid (1902) extended this argument across the animal kingdom and into human history. In every case Kropotkin examined — ants, bees, birds, ungulates, primates, and then human hunter-gatherer societies, medieval guilds, peasant village communes, modern labor unions — he found the same pattern: the most successful groups were those with the most developed capacity for mutual support.
Darwin's mechanism is real. But the "struggle" that matters most for survival is not the struggle of individual against individual within a species. It is the struggle of the group against the environment. And in that struggle, mutual aid — cooperation, solidarity, the sharing of resources and effort — is the primary advantage a group can have.
Kropotkin wasn't arguing that competition doesn't exist. He was arguing that it's not the dominant evolutionary force its proponents claimed, and that cooperation is at least as fundamental — and for social species, more so.
04The political argument
If cooperation is natural — if it's the primary survival strategy of social species, encoded across millions of years — then the claim that competition is "natural" and cooperation is an artificial imposition loses its force. The state and the market are not the only mechanisms for organizing collective life, and they are not grounded in some deeper natural order that cooperation would violate.
What Kropotkin saw in the historical record was that every time the state or capital enclosed a commons, broke up a cooperative institution, or replaced mutual aid with market dependency, it took deliberate, sustained effort. Communities resist enclosure because cooperation is their natural mode. The enclosure is the imposition; the commons is the default.
This is the thread that connects Kropotkin to Ostrom two generations later: both were empiricists who found, by looking carefully at actual communities, that the commons works, that cooperation is durable, and that the claim to its inevitability requires better evidence than its critics have provided.