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In the 18th and 19th century evolutionary biologists, including Darwin, emphasised the similarities between natural evolution and artificial 'improvement' of livestock under domestication.

FREE
This course includes
Hours of videos

4 hours, 30 minutes

Units & Quizzes

13

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Certificate of Completion

They believed that studying domesticated animals and plants could illuminate the mechanisms of natural evolution. This free course, Evolution: artificial selection and domestication, provides an introduction to their work.

Course learning outcomes

After studying this course, you should be able to:

  • Define the terms ‘artificial selection’ and ‘domestication’ and explain the relationship between artificial and natural selection
  • Describe some forms of dwarfism in modern breeds of dogs and explain their relationship to dwarfism in humans and in modern and extinct wild mammals
  • Describe some features of the skin, fur, feathers and the shape of the head frequently observed in domesticated livestock
  • Outline some major conclusions emerging from the sequencing of the dog genome and outline some current theories about when and where dogs were domesticated
  • Explain the functional basis of some of the anatomical changes induced by selective breeding of some modern dog breeds.

Course Currilcum

  • Introduction 00:10:00
  • Learning outcomes 00:10:00
    • Introduction 00:05:00
    • Artificial selection 00:30:00
    • Introduction 00:05:00
    • Size and shape 00:30:00
    • Skin pigmentation and pattern 00:30:00
    • The origins of domesticated dogs 00:30:00
    • Structure and behaviour in modern dog breeds 00:30:00
    • Introduction 00:10:00
    • Experimental domestication of foxes 00:30:00
    • Phenotypic changes that appeared without being selected 00:30:00
    • Conclusion 00:20:00