. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. ORIGIN AND USES OF COLOUR IN ANIMALS 219 of Africa—we find many distinctiye marlvings of a similar kind. The gazelles have variously striped and banded faces, besides white patches behind and on the flanks, as shown in the woodcut. The spring-bok has a white patch on the face and one on the sides, ^viih a curiously distinctive white stripe above the tail, which is nearly concealed when the animal is at rest by a fold of skin but comes into full view when it is in motion,
. Darwinism : an exposition of the theory of natural selection, with some of its applications. Natural selection; Evolution. ORIGIN AND USES OF COLOUR IN ANIMALS 219 of Africa—we find many distinctiye marlvings of a similar kind. The gazelles have variously striped and banded faces, besides white patches behind and on the flanks, as shown in the woodcut. The spring-bok has a white patch on the face and one on the sides, ^viih a curiously distinctive white stripe above the tail, which is nearly concealed when the animal is at rest by a fold of skin but comes into full view when it is in motion, being thus C[uite analogous to the. ^ '4^y^, ^^m% Fig. 18.—Gazella scemraerringi. upturned white tail of the rabbit. In the pallah the white rump-mark is bordered with black, and the peculiar shape of the horns distinguishes it when seen from the front. The sable-antelope, the gems-bok, the oryx, the hart- beest, the bonte-bok, and the addax have each peculiar white markings; and they are besides characterised by horns so remarkably different in each species and so conspicuous, that it seems probable that the peculiarities in length, t^dst, and curvature have been differentiated for the purpose of recogni- tion, rather than for any speciality of defence in species whose general habits are so 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 Wallace, Alfred Russel, 1823-1913. London ; New York : Macmillan
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherlondonnewyorkmacmi
