Belyaev questioned if the wanting for tameness and up against violence create impact in the hormone and you can neurochemical transform, since the decisions fundamentally came up regarding biology. People hormonal and chemical substances alter you will following end up being implicated from inside the structure and physiology. Maybe this new the latest anatomical differences in tamed pets were linked to new genetic alter root the new behavioural attitude to have which they chosen (tameness and you will reasonable hostility). The guy thought that he might investigate these types of questions relating to domestication of the attempting to domesticate nuts foxes. Belyaev and his colleagues got nuts silver foxes (a version of your yellow fox) and you may bred her or him, that have a powerful selection criteria to own intrinsic tameness.
It shows you new foxes’ tameness, however it will not account for their altered fur color activities
Doing in the one month old, and ongoing monthly during the infancy, the newest foxes was looked at because of their responses to a keen experimenter. The new experimenter perform try to pet and manage this new fox while offering they eating.