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Sex Colours In the Mollusca And Crustacea--In Insects--In
Butterflies And Moths--Probable Causes Of These Colours--Sexual
Selection As A Supposed cause--Sexual Coloration Of Birds--Cause
Of Dull Colours Of Female Birds--Relation Of Sex Colour To
Nesting habits--Sexual Colours Of Other Vertebrates--Sexual
Selection By The Struggles Of Males--Sexual Characters Due To
Natural Selection--Decorative Plumage Of Males And Its Effect On
The Females--Display Of Decorative Plumage By The Males--A
Theory Of Animal Coloration--The Origin Of Accessory
Plumes--Development Of Accessory Plumes And Their Display--The
Effect Of Female Preference Will Be Neutralised by Natural
Selection--General Laws Of Animal Coloration--Concluding
Remarks.
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