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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.
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Description
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 content
- Introduction 00:10:00
- Learning outcomes 00:10:00
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- Introduction 00:05:00
- Artificial selection 00:30:00
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- 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
Instructor
Open University UK
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