I am no animal behavior scientist, but from watching “Nova” I know that animals in the lab and in the wild can solve problems, invent tools, do a limited amount of arithmetic, and communicate in ways not dissimilar from that of man. A few years ago, chimps in Africa were observed sharpening sticks for use in hunting. With tool-making like that, along with every other aspect of chimpanzee behavior and biology, it is impossible not to see such a chimp on a biological continuum with man, especially early man. If chimps exist on such a continuum with us, then other great apes must as well, and then other mammals, and ultimately all animals.
The rule of parsimony in scientific inference … proscribes the positing of an unobservable entity unless positing it can be shown to be necessary in order to explain observed phenomena.
To say, for example, that only men make things, or that only men make tools, is false; for beavers make dams, spiders make webs, birds make nests, and apes make tools. However, the following more precise statements are true and are so regarded by leading anthropologists.
Only men fashion tools not for immediate use but for future action in remote but foreseeable contingencies. Other so-called tool-making animals improvise instruments that they immediately employ in the same perceptual context which led to the improvisation.
Only men machinofacture products as well as manufacture them; i.e., produce things, first, by making blueprints that incorporate the specifications of the product to be made, and then by creating dies for the reproduction of the specified item out of plastic materials. No other animal machinofactures to any degree.
Only men make totally useless (though enjoyable) works of fine art; the productions of other animals always serve a biological purpose or have some biological utility for the survival of the individual or the species, as human works of fine art do not.
Only man makes artistically, that is, by free choice as well as by conceptual thought. All other animals make instinctively. The observable evidence for this point of difference is the wide range of variability in human productions of every sort, as compared with the uniformity of the productions of other animals, uniform within a given species because instinctively determined and therefore species specific.
It is an egregious error, yet one made by eminent scientists, to align the instinctive (and therefore uniform) performances of other species of animals with the voluntary (and therefore variable) performances of men, thereby concluding, for example, that both men and the bower-birds of Australia make artistically because the latter decorate their nests, or that both men and the dancing bees make complicated statements because the dances of the latter indicate the distance and direction of the place where nectar can be found.
Similarly, to say that only man is a social animal or that only man lives in a highly organized society is false; for many other species of animals are manifestly gregarious, and the social insects, such as wasps, ants, and termites, live in highly organized societies. However, the following more precise statements are true in the light of all available evidence.
In addition to being gregarious as other animals are, only man is a political animal; that is, only man frames constitutions and makes laws for the organization and conduct of the societies in which he lives, prescribing right conduct and prohibiting wrong conduct.
Only man associates voluntarily, as is evidenced by the great variability within the human species of the forms of social organization, in families and tribes as well as in states. All other species of gregarious animals associate instinctively (especially those with the highest degree of social organization, such as the social insects), as is evidenced by the uniformity of their species specific modes of association or patterns of social organization.
Of the two foregoing points, the first is the basis for an inference to man’s possession of the power of conceptual thought; the second is the basis for an inference to man’s possession of the power of free choice.
The Confusion of the Animalists
by Mortimer J. Adler, Ph.D.