. The descent of man, and selection in relation to sex. Evolution; Heredity; Human beings; Natural selection. CHAR BIRDS—YOUl^G U/CE ADt/LT MALES. 499 it can hardly be distinguished except by its shorter toee. This fact is another striking instance of the law that secondary sexual characters are often widely different in closely allied forms, though it is a very rare circumstance when such differ- ences relate to the female sex. The young of both sexes of R, bengalensis in their first plumage are said to resemble tb^. Fig. 02.—Rhynchaea capensis (from Brehm), mature male.^^ There is also
. The descent of man, and selection in relation to sex. Evolution; Heredity; Human beings; Natural selection. CHAR BIRDS—YOUl^G U/CE ADt/LT MALES. 499 it can hardly be distinguished except by its shorter toee. This fact is another striking instance of the law that secondary sexual characters are often widely different in closely allied forms, though it is a very rare circumstance when such differ- ences relate to the female sex. The young of both sexes of R, bengalensis in their first plumage are said to resemble tb^. Fig. 02.—Rhynchaea capensis (from Brehm), mature male.^^ There is also reason to believe that the maie undertakes tht: duty of incubation, for Mr. Swinhoe ^^ found the females before the close of the summer associated in flocks, as occurs with the females of the Turnix. The females of Phalaropus fulicarius and P. hyperboreus are larger, and in their summer plumage ** more gayly attired than #* "The Indian ; Scat. i&< «. »* "lUi**' x8^ 9, wQL. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Darwin, Charles, 1809-1882. New York Hurst
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Keywords: ., bookcentury1800, bookdecade1870, booksubjecthumanbeings, bookyear
