Epigenetics: changing \'eye\' spots

Would love to know how an evolutionary theorist would explain how this same mechanism arose in fish, moths, butterflies, Cervils, birds and more.

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What is the purpose of living? How about, 'to reduce needless suffering. It seems to me to be a worthy purpose.

Complete thread:

Epigenetics: Human effects David Turell 2013-02-13, 05:49 PM
- Epigenetics: Plant adaptation David Turell 2013-02-14, 06:36 PM
  - Epigenetics: Plant adaptation David Turell 2013-03-27, 01:58 PM
    - Epigenetics: speedy changes David Turell 2013-04-09, 06:34 PM
      - Epigenetics: speedy changes (guppies) David Turell 2015-09-02, 09:37 PM
        
        Epigenetics: guppies' adaptations David Turell 2017-07-31, 05:15 PM
- Epigenetics: DNA controls David Turell 2013-06-11, 01:33 AM
  - Epigenetics: DNA controls David Turell 2013-06-11, 02:42 PM
- Epigenetics: Love among voles David Turell 2013-06-19, 05:08 PM
  - Epigenetics: In pathogenic bacteria David Turell 2013-06-19, 05:14 PM
- Epigenetics: Passing the effects David Turell 2013-06-21, 02:14 PM
  - Epigenetics: exercise changes David Turell 2013-08-08, 01:27 AM
    - Epigenetics: changing \'eye\' spots David Turell 2013-08-20, 03:23 PM
      - Epigenetics: changing \'eye\' spots Balance_Maintained 2013-08-20, 08:49 PM
        
        Epigenetics: changing \'eye\' spots dhw 2013-08-21, 12:36 PM
        
        Epigenetics: induced fear David Turell 2013-12-03, 12:43 AM
        
        Epigenetics: how developed? David Turell 2013-12-23, 02:54 PM
        
        Epigenetics:Lamarkism revived David Turell 2014-03-07, 03:35 PM
        
        Epigenetics:Telomere length David Turell 2014-04-07, 03:13 PM
        
        Epigenetics: Dplicate gene controls David Turell 2014-04-09, 02:52 PM
        
        Epigenetics: innate language program David Turell 2014-04-09, 03:08 PM
        
        Epigenetics: quick worm changes David Turell 2014-05-17, 02:48 PM
        
        Epigenetics: quick worm changes David Turell 2014-05-27, 08:38 PM
        
        Epigenetics: silence of the crickets David Turell 2014-06-02, 02:14 PM
        
        Epigenetics: passing on fear David Turell 2014-10-18, 12:54 AM
        
        Epigenetics: through phenotype changes? David Turell 2015-01-14, 01:41 AM
        
        Epigenetics: through phenotype changes? dhw 2015-01-14, 07:55 PM
        
        Epigenetics: through phenotype changes? David Turell 2015-01-15, 12:12 AM
        
        Epigenetics: through phenotype changes? dhw 2015-01-15, 04:39 PM
        
        Epigenetics: through phenotype changes? David Turell 2015-01-15, 07:17 PM
        
        Epigenetics: through phenotype changes? dhw 2015-01-16, 07:43 PM
        
        Epigenetics: through phenotype changes? David Turell 2015-01-17, 01:16 AM
        
        Epigenetics: through phenotype changes? dhw 2015-01-17, 02:01 PM
        
        Epigenetics: through phenotype changes? David Turell 2015-01-17, 02:35 PM
        
        Epigenetics: through phenotype changes? dhw 2015-01-18, 01:12 PM
        
        Epigenetics: through phenotype changes? David Turell 2015-01-18, 03:44 PM
        
        Telomere length protection David Turell 2015-11-13, 02:58 PM
  - Epigenetics: Passing the effects David Turell 2015-02-02, 11:06 PM
    - Epigenetics: Passing the effects dhw 2015-02-03, 09:13 PM
      - Epigenetics: Passing the effects David Turell 2015-02-04, 03:13 PM
        
        Epigenetics: Passing the effects dhw 2015-02-05, 07:26 PM
        
        Epigenetics: Passing the effects David Turell 2015-02-05, 09:58 PM
        
        Epigenetics: Passing the effects dhw 2015-02-06, 06:28 PM
        
        Epigenetics: Passing the effects David Turell 2015-02-06, 06:45 PM
        
        Epigenetics: Passing the effects dhw 2015-02-07, 07:32 PM
        
        Epigenetics: Passing the effects David Turell 2015-02-08, 12:25 AM
        
        Epigenetics: Passing the effects dhw 2015-02-08, 07:51 PM
        
        Epigenetics: Passing the effects David Turell 2015-02-08, 08:30 PM
        
        Epigenetics: DNA markers David Turell 2015-02-10, 07:34 PM
        
        Epigenetics: Father's diet affect offspring David Turell 2016-01-04, 03:08 PM
        
        Epigenetics: Transgenerational effects questoned David Turell 2016-05-22, 02:49 PM
        
        Epigenetics: Transgenerational effects shown David Turell 2017-08-21, 01:46 PM
        
        Epigenetics: Dutch transgenerational effects David Turell 2018-02-03, 11:51 PM
        
        Epigenetics: Father's stress affects offspring' brain David Turell 2018-02-17, 10:36 PM
        
        Epigenetics: transgenerational pregnancy effects David Turell 2018-05-25, 01:59 PM

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Epigenetics: changing \'eye\' spots (Introduction)