Note that this was done in a relatively short time with foxes, see the Domesticated Silver Fox https://en.wikipedia.org/wiki/Domesticated_silver_fox
They had to kill a lot of foxes to "evolve" them in such a short period of time though..
@cwebber select is probably the right word. Also i think that was a biology project that slipped past the soviet union ideology police by being a fox farm.
@alienghic Yes, more about it on this page: https://en.wikipedia.org/wiki/Dmitry_Belyayev_(zoologist)#Belyayev%27s_fox_experiment
@alienghic Ooh, this article is nice http://ngm.nationalgeographic.com/print/2011/03/taming-wild-animals/ratliff-text