Archive image from page 317 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele1874darw Year: 1874 304 TBE DESCENT OF MAN. haying fought with other males during many generations. In most of the orders especially in the highest or the Brachyura, the male is larger than the female ; the para- sitic genera, however, in which the sexes follow different Fig. 8. Orchestia Darwinii (from Fritz MuUer), showing the differently constructed chelae of the two male forms. habits of life, and most of the Entomostraca must be excepted. The chelae of many crus
Archive image from page 317 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele1874darw Year: 1874 304 TBE DESCENT OF MAN. haying fought with other males during many generations. In most of the orders especially in the highest or the Brachyura, the male is larger than the female ; the para- sitic genera, however, in which the sexes follow different Fig. 8. Orchestia Darwinii (from Fritz MuUer), showing the differently constructed chelae of the two male forms. habits of life, and most of the Entomostraca must be excepted. The chelae of many crustaceans are weapons well adapted for fighting. Thus when a devil-crab {Por tunus puler) was seen by a son of Mr. Bate fighting with a Carcinus mce7ias, the latter was soon thrown on its back, and had every limb torn from its body. When several
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Keywords: 1800, 1870, 1874, archive, book, bookauthor, bookcentury, bookdecade, bookpublisher, booksubject, bookyear, darwin_charles_1809_1882, drawing, evolution, heredity, historical, history, human_beings, illustration, image, natural_selection, new_york_a_l_burt, page, picture, print, reference, sex_differences, sexual_dimorphism_animals_, sexual_selection_in_animals, vintage
