It has been suggested that
- the human species may be undergoing an evolutionary transition in individuality (ETI).
there is disagreement about
- how to apply the ETI framework to our species
- and whether culture is implicated
- as either cause or consequence.
Long-term gene–culture coevolution (GCC) i- s
- also poorly understood.
argued that
- culture steers human evolution,
Others proposed
- genes hold culture on a leash.
After review of the literature and evidence on long-term GCC in humans
- emerge a set of common themes.
- First, culture appears to hold greater adaptive potential than genetic inheritance
- and is probably driving human evolution.
- The evolutionary impact of culture occurs
- mainly through culturally organized groups,
- which have come to dominate human affairs in recent millennia.
- Second, the role of culture appears to be growing,
- increasingly bypassing genetic evolution and weakening genetic adaptive potential.
-Taken together, these findings suggest that human long-term GCC is characterized by
- an evolutionary transition in inheritance
- from genes to culture
- which entails a transition in individuality (from genetic individual to cultural group).
Research on GCC should focus on the possibility of
- an ongoing transition in the human inheritance system.