Archive image from page 251 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele000darw Year: 1971 240 SEXUAL SELECTION : MAMMALS. (Taut II. Bartlett informs mc that when two of these animals pre- pare for battle, they kneel down, with their heads between their front legs, and in this attitude the horns stand near- ly parallel and close to the ground, with the points di- rected forward and a little upward. . The combatants then gradually approach each other and endeavor to get the upturned points under each other's bodies; if one suc- ceeds in doin
Archive image from page 251 of The descent of man, and. The descent of man, and selection in relation to sex descentofmansele000darw Year: 1971 240 SEXUAL SELECTION : MAMMALS. (Taut II. Bartlett informs mc that when two of these animals pre- pare for battle, they kneel down, with their heads between their front legs, and in this attitude the horns stand near- ly parallel and close to the ground, with the points di- rected forward and a little upward. . The combatants then gradually approach each other and endeavor to get the upturned points under each other's bodies; if one suc- ceeds in doing this he suddenly springs up, throwing up Fia. 61.—Oryx leucoiyx, male (from the Knowsley Menagerie). his head at the same time, and can thus wound or per- haps even transfix his antagonist. Both animals always kneel down so as to guard as far as possible against this manoeuvre. It has been recorded that one of these ante- lopes has used his horns with effect even against a lion; yet, from being forced to place his head between the fore- legs in order to bring the points of the horns forward, he would generally be under a great disadvantage when at- tacked by any other It is, therefore, not probable that the horns have been modified into their present great length and peculiar position, as a protection against beasts of prey. We can, however, see that as soon as
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Keywords: 1900, 1970, 1971, archive, book, bookauthor, bookcentury, bookdecade, bookpublisher, booksubject, bookyear, darwin_charles_1809_1882, drawing, evolution_biology_, historical, history, human_beings, illustration, image, new_york_d_appleton_and_company, page, picture, print, reference, sex_differences, sexual_dimorphism_animals_, sexual_selection_in_animals, vintage
