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Sheep Kept Quote by Charles Darwin

“Youatt gives an excellent illustration of the effects of a course of selection which may be considered as unconscious, in so far that the breeders could never have expected, or even wished, to produce the result which ensued—namely, the production of the distinct strains. The two flocks of…” quote by Charles Darwin
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““Youatt gives an excellent illustration of the effects of a course of selection which may be considered as unconscious, in so far that the breeders could never have expected, or even wished, to produce the result which ensued—namely, the production of the distinct strains. The two flocks of Leicester sheep kept by Mr. Buckley and Mr. Burgess, as Mr. Youatt remarks, "Have been purely bred from the original stock of Mr. Bakewell for upwards of fifty years. There is not a suspicion existing in the mind of any one at all acquainted with the subject that the owner of either of them has deviated in any one instance from the pure blood of Mr. Bakewell's flock, and yet the difference between the sheep possessed by these two gentlemen is so great that they have the appearance of being quite different varieties.””

Charles Darwin

About This Quote

Source Book: The Variation of Animals and Plants under Domestication by Charles Darwin, 1868

Illustrates how selective breeding unintentionally creates distinct varieties, showing unconscious evolutionary forces.

In simple terms: Unconscious selection can produce surprising differences.

Key Takeaway

Recognize hidden influences in outcomes.

Themes

evolution selection unconscious processes genetics

Mood

analytical inquisitive

Type

scientific educational

When to use this quote

  • animal breeding
  • crop improvement
  • business strategy
  • education curriculum

Key Concepts

artificial selection genetic drift heritage

Questions to Reflect On

  • What unintended results have you observed?
  • How can we anticipate hidden effects?
A Different Perspective

Unconscious selection may overlook ethical concerns.

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