ALL ANIMALS HAVE AN EVOLUTIONARY PAST. ONLY HUMANS MAKE HISTORY

It has long been known that different groups of chimpanzees have different cultural habits. Now, new research has revealed the degree of behaviour plasticity among orangutans, plasticity that gives rise to cultural differences between different groups, each possessing behaviours specific to that group, and each passing on such behaviours from one generation to another.

For many, the empirical discoveries about ape cultures are important not just because of what they tell us about the mental abilities of the Great Apes, but also because of what they tell us, or potentially tell us, about humans and human cultures. (‘Great Ape’, I know, is often seen as synonymous with the family Hominidae, which includes humans; here I’m using the term to refer to non-human members of Hominidae.) In particular, many see such studies as shining significant light upon the common evolutionary roots of human and Great Ape culture.  ‘Now we know that the roots of human culture go much deeper than previously thought’, Michael Krützen, the lead author of the orangutan study suggests. ‘Human culture is built on a solid foundation that is many millions of years old and is shared with the other great apes.’

In one sense, of course, this has to be true. Humans are evolved beings and our propensity for culture must have evolved at some point in our evolutionary journey. If the Great Apes possess the same cultural propensities as humans do, then there are likely to be common evolutionary roots for those propensities. But do they possess the same cultural propensities?