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From:
Alfred Russel Wallace
To:
Charles Robert Darwin
Date:
4 Oct 1868
Source of text:
DAR 106: B68–69
Summary:

Sexual differences in coloration. Sexual selection versus natural selection as explanations. ARW continues to argue against sexual selection, saying that natural selection, in keeping the female dull for protection, would account for differences in sexual colouring more effectively than inheritance and partial transmission of sexually selected male colours. Colours of female birds of paradise. Protective coloration. Disagrees with CD on coincidence of hidden nests and bright colours of females.

Contributor:
Darwin Correspondence Project
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From:
Edward Blyth
To:
Charles Robert Darwin
Date:
4 Oct 1868
Source of text:
DAR 84.1: 100–2
Summary:

Replies to CD’s questions on sexual differences in birds.

Contributor:
Darwin Correspondence Project
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