The still-life category also shares commonalities with zoological and especially botanical illustration, where there has been considerable overlap among artists.
These traditional subdivisions, largely based on superficial commonalities, have been replaced by classifications based on phylogenetics (evolutionary relatedness among organisms).
These groups are relatively well conserved across land mammals, and somewhat less well conserved between land and marine mammals (though commonalities are certainly present).
Despite the varieties of different languages and customs in this region, many cultural commonalities exist among the populations due to shared experiences and histories.