“…The practical value of Belyaev's concept has been realized in a huge collection of commercial fur colors-e.g., "Amber-gold pastel," "Ashen," "Beige," "Black crystal," "Cobalt," "Ermine-like," "Peach," ""Pearl," Platinum," "Purple," "Silver sable-like," "Steel-blue," and "Straw,"-rarely or never seen in the wild [6]. The concept's fundamental importance has found confirmation in a large variety of breeds of dogs [7], cats [8], pigs [9], cows [10], horses [11], sheep [12], goats [13], chickens [14], ducks [15], geese [16], and other domestic animals [17] as well as in artificial shelters and additional feeding for wild animals in wildlife for saving them [18]. On the basis of Belyaev's concept [1], a laboratory model of animal domestication by humans has been created using outbred lines of tame and aggressive rats artificially bred [19] for performance on a standard glove test [20].…”