What makes us human Questions raised by the discovery of Homo Floresiensis

Marxist Theory · 2026-05-13

Core Argument¶

The article argues that the discovery of Homo floresiensis — a small-brained, tool-making hominid that survived until as recently as 13,000 years ago — exposes the inadequacy of linear, gradualist, and idealist frameworks in palaeoanthropology. The central claim is that only dialectical materialism can properly account for the evidence: evolution proceeds through qualitative leaps, multiple hominid species coexisted, brain size is not the determinant of intelligence, and labour — not abstract reason — is the defining characteristic that separates humans from other animals. The discovery is presented not as an anomaly but as confirmation that nature works dialectically, and that the prejudices of class-divided society distort scientific interpretation at every level — from the gendering of fossil reconstructions to the racialised depictions of Neanderthals.

Theoretical Grounding¶

The analysis is rooted in Engels's The Part Played by Labour in the Transition from Ape to Man and The Origin of the Family, Private Property and the State, alongside Alan Woods and Ted Grant's Reason in Revolt. It draws on Stephen Jay Gould's theory of punctuated equilibrium — itself a dialectical conception of evolutionary change — to argue against the gradualist orthodoxy that dominated post-Darwinian biology. The article applies historical materialism directly: the development of upright posture, the freeing of the hands, the growth of the brain, the emergence of language, and the social organisation of labour are treated as a single, internally contradictory process. The oppression of women is explained not biologically but as a product of the emergence of private property and class society, following Engels's analysis. The article positions itself within the Marxist tradition's insistence that philosophy is inescapable — that scientists who reject theory merely adopt, uncritically, the idealism of the ruling class.

Conjunctural Relevance¶

The article was published in January 2005, shortly after the announcement of the Homo floresiensis discovery in October 2004. The find was genuinely disruptive: a hominid with a brain volume of around 380cc — smaller than a chimpanzee's — yet capable of producing sophisticated stone tools and apparently hunting pygmy elephants (Stegodon). The dating of the remains to as recently as 13,000 years ago meant that Homo floresiensis was alive well after Homo sapiens had spread across the globe, directly contradicting the popular narrative of a single, triumphant human lineage. The article seizes on the controversy precisely because it forced the scientific establishment to confront questions it had assumed were settled: what is the relationship between brain size and intelligence? Is tool-making exclusive to large-brained hominids? Did different human species coexist? The article's critique of the gendered and racialised imagery in palaeoanthropological reconstructions — white, fair-haired Homo sapiens versus dark, hairy Neanderthals — connects directly to the ideological function of science under capitalism: presenting the present as natural and inevitable.

Where the Argument Continues¶

The article is part of a sustained Marxist engagement with evolutionary theory and the philosophy of science. It explicitly references Alan Woods's The Demonic Ape (January 2004), which critiques the idealist and reactionary currents in primatology and palaeoanthropology. Fred Weston's tribute to Stephen Jay Gould (May 2002) provides the theoretical bridge to punctuated equilibrium. John Pickard's Engels and Human Development (June 1984) develops the labour theory of human origins in greater depth. Mick Brooks's What is Historical Materialism (November 2002) and Historical Materialism (September 1998) provide the broader framework. The argument continues in Reason in Revolt, which remains the most comprehensive Marxist treatment of modern science. The article does not develop the implications of Homo floresiensis for the question of human cognitive evolution in detail — that is left to the Woods article and the broader corpus.

Connections¶

Engels, The Part Played by Labour in the Transition from Ape to Man — the foundational text for the article's central thesis.
Engels, The Origin of the Family, Private Property and the State — the source for the analysis of women's oppression.
Alan Woods, The Demonic Ape — a companion piece critiquing idealist and racist currents in primatology.
Stephen Jay Gould, The Panda's Thumb and Wonderful Life — the source of punctuated equilibrium and the critique of linear evolutionary narratives.
Alan Woods and Ted Grant, Reason in Revolt — the systematic Marxist treatment of dialectics and modern science.
Richard Lewontin and Richard Levins, The Dialectical Biologist — a parallel Marxist engagement with evolutionary biology, though not cited in the article.

Key Quotes¶

"Evolution is not a linear and gradual matter. Evolution works in a dialectical way where for long periods of time nothing much seems to change. During these long periods there are quantitative changes taking place, and these quantitative changes accumulate. These longer periods are interspersed with shorter periods where quantity changes into quality."
"The most important aspect is the ability to create tools... Chimps do not have the capacity for abstract thought that would allow them to make something more sophisticated, and using a stone to crack a nut cannot be considered as making a tool. They are bound by the limits of their natural surroundings and are 'using tools', not 'making tools'."
"What made us human, what made language, culture and complex learning a necessity was labour. Labour is a unique characteristic that we do not share with any other animal on the planet and this is the crucial difference that separates us from them."
"The animal merely uses its environment, and brings about changes in it simply by its presence; man by his changes makes it serve his ends, masters it. This is the final, essential distinction between man and other animals, and once again it is labour that brings about this distinction." (Engels, quoted approvingly)
"It was not so called 'human nature' or some kind of male conspiracy that led to the development of class society and the oppression of women. The material conditions changed and these created the basis for class society and with it the oppression of women."
"Today most scientists disregard philosophy in general, and Marxism in particular. However, consciously or unconsciously, we all have a philosophy which we use constantly when we observe and analyse the world around us. If we do not consciously use a philosophy, we use the one of the dominant capitalist class, which is permeated by all kinds of prejudices and idealism."