Contrary to some other comments, heredity by definition excludes culture.
Heredity can be measured via twin studies - if twins are adopted into two different families or cultures: what commonalities can we still find, beyond random variability. The goal is to take culture out of the consideration and look at the biology. (You may argue how successful this can be, but it is the goal, and it is what is meant by ‘heredity’)
It’s reasonable to expect/have learned that all heredity must come through genes - which the headline illustrates - but we are starting to explore other mechanisms for heredity.
The article makes no comment on cultural transmission, which is entirely an independent concept.
Heredity can be measured via twin studies - if twins are adopted into two different families or cultures: what commonalities can we still find, beyond random variability. The goal is to take culture out of the consideration and look at the biology. (You may argue how successful this can be, but it is the goal, and it is what is meant by ‘heredity’)
It’s reasonable to expect/have learned that all heredity must come through genes - which the headline illustrates - but we are starting to explore other mechanisms for heredity.
The article makes no comment on cultural transmission, which is entirely an independent concept.