Dr Ravreby speculates that odour-matching of this sort may be an extended form of kin selection, which spreads an individual's genes collaterally, by helping the reproduction of relatives who are likely to share them.

Ravreby博士推测，这种气味匹配可能是亲缘选择的一种延伸形式，它通过帮助可能共享基因的亲缘去繁殖，来间接传播个体的基因。