Sparrows and breeding

Flere episoder fra "Darwin and Evolution - for iPod/iPhone"

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  Darwin and Evolution

  26.3.2010

  1:10

  A short introduction to this album.
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  Transcript -- Darwin and Evolution

  26.3.2010

  Transcript -- A short introduction to this album.
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  Shared ancestries

  1.3.2009

  4:09

  Exhibits at the Natural History Museum in Tring reveal a striking shared ancestry between the hippo and the dolphin.
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  Transcript -- Shared ancestries

  1.3.2009

  Transcript -- Exhibits at the Natural History Museum in Tring reveal a striking shared ancestry between the hippo and the dolphin.
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  Birds and breeding

  1.3.2009

  2:32

  Darwin's study of the bizarre results of artificial breeding of pigeons shed light on evolutionary processes.
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  Transcript -- Birds and breeding

  1.3.2009

  Transcript -- Darwin's study of the bizarre results of artificial breeding of pigeons shed light on evolutionary processes.
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  Dogs and breeding

  1.3.2009

  2:23

  Dogs used to be bred for their ability to help humans. Now selective breeding accentuates physical features at the expense of ability to survive in the wild.
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  Transcript -- Dogs and breeding

  1.3.2009

  Transcript -- Dogs used to be bred for their ability to help humans. Now selective breeding accentuates physical features at the expense of ability to survive in the wild.
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  Sparrows and breeding

  1.3.2009

  2:16

  How differences in 'badge' sizes between males relates to success at finding food and rearing young.
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  Transcript -- Sparrows and breeding

  1.3.2009

  Transcript -- How differences in 'badge' sizes between males relates to success at finding food and rearing young.