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قراءة كتاب Contributions to the Theory of Natural Selection A Series of Essays
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اللغة: English
Contributions to the Theory of Natural Selection A Series of Essays
الصفحة رقم: 5
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- How Instinct may be best Studied
- Definition of Instinct
- Does Man possess Instincts?
- How Indians travel through unknown and trackless Forests
- Instinct or Reason in the Construction of Birds’ Nests
- Do Men build by Reason or by Imitation?
- Why does each Bird build a peculiar kind of Nest?
- How do young Birds learn to build their first Nest?
- Do Birds sing by Instinct or by Imitation?
- How young Birds may learn to build Nests.
- Man’s Works mainly Imitative
- Birds do Alter and Improve their Nests when altered conditions require it
- Conclusion
- Changed Conditions and persistent Habits as influencing Nidification
- Classification of Nests
- Sexual differences of Colour in Birds
- The Law which connects the Colours of Female Birds with the mode of Nidification
- What the Facts Teach us
- Colour more variable than Structure or Habits, and therefore the Character which has generally been modified
- Exceptional cases confirmatory of the above Explanation
- Real or apparent exceptions to the Law stated at p. 240
- Various modes of Protection of Animals
- Females of some groups require and obtain more Protection than the Males
- Conclusion