One of the first signs of domestication is variability of color. The individuals all have white spots or all white or all black. It is interesting that white coloring is usually connected with lower performance (there are few white racing horses and even fewer winners) or with different defects (white noble cats have a high incidence of deafness).

Sheep have been domesticated for both their meat and their wool. (Photo by Andris Apse. Bruce Coleman, Inc. Reproduced by permission.)

internal organs and under the skin, while in domestic animals it is stored among muscle filaments and around the tail, especially by pigs or sheep.

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