. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings -- Origin. 520 The Descent of Man. Part II. tusks appear to have been specially modified to act as guards, though no doubt they are to a certain extent used for this pur- pose. But the wart-hog is not destitute of other special means of protection, for it has, on each side of the face, beneath the eyes, a rather stiff, yet flexible, cartilaginous, oblong pad (fig. 67), which projects two or three inches outwards; and it appeared to Mr. Bartlett and myself, when viewing the living animal
. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings -- Origin. 520 The Descent of Man. Part II. tusks appear to have been specially modified to act as guards, though no doubt they are to a certain extent used for this pur- pose. But the wart-hog is not destitute of other special means of protection, for it has, on each side of the face, beneath the eyes, a rather stiff, yet flexible, cartilaginous, oblong pad (fig. 67), which projects two or three inches outwards; and it appeared to Mr. Bartlett and myself, when viewing the living animal, that these pads, when struck from beneath by the tusks of an opponent, would be turned upwards, and would thus admirably protect the somewhat prominent eyes. I may add, on the authority of Mr. Bartlett, that these boars when fighting stand directly face to Fig. 67. Head of female ^Ethiopian wart-hog, from 'Proc. Zool. Soc' 1869, shewing the same characters as the male, though on a reduced scale. When the engraving was first made, 1 was under the impression that it repre- sented the male. Lastly, the African river-hog (Potomochoerus penicillatus) has a hard cartilaginous kDob on each side of the face beneath the eyes, which answers to the flexible pad of the wart-hog; it has also two bony prominences on the upper jaw above the nostrils. A boar of this species in the Zoological Gardens recently broke into the cage of the wart-hog. They fought all night long, and were found in the morning much exhausted, but not seriously wounded. It is a significant fact, as shewing the purpose of the above-described projections and excrescences, that these were covered with blood, and were scored and abraded in an extra- ordinary manner. Although the males of so many members of the pig family are. 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 perfe
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Keywords: ., boo, bookcentury1800, bookdecade1880, booksubjectnaturalselection
