From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
[24 June 1867]
Source of text:
The British Library (Add 46434, f. 74)
Summary:
CD now acknowledges that the sometimes very great sexual, i.e., ornamental, differences in fishes offer a difficulty to the view that females are not brightly coloured on account of the danger to propagation of the species.
Contributor:
Darwin Correspondence Project