 In Dawkins’ early writings, replicators and vehicles played different but complementary and equally important roles in selection; however, as he honed his view of the evolutionary process, vehicles became less and less fundamental. Initially, Dawkins was content to dethrone the organism from its pride of place in biology. It is an important focus of environmental interaction, but other entities, both below and above the organismic level, can also function as vehicles. In later writings, however, Dawkins went even further to argue that phenotypic traits are what really matter for evolution by natural selection to occur and that they can be treated independently of their being organized into vehicles. More than that, features such as spider webs should be viewed as part of a spider’s phenotype. Hence, Dawkins titled his second book The Extended Phenotype (Dawkins 1982b).