File:Animal Life and the World of Nature; A magazine of Natural History (1902) (14765084951).jpg

Identifier: animallifeworldo119021903lond (find matches)
Title: Animal Life and the World of Nature; A magazine of Natural History
Year: 1902 (1900s)
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Publisher: London
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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eight, 30 in. up to shoulder ; length, 91 in. the beauty of the wildernesses of Africa or Asia or to the usefulness of two necessaryforms in the scheme of nature. Nor in civilized countries, beyond the mere fact ofproducing a sport, or curiosity, are these hybrids likely to be of interest or of use toanyone. In this case, at all events, nature seems to have wisely set limits which eventhe ingenuity of man is not likely to be able to evade. The causes of the sterility offirst crosses and of their hybrid progeny were subjects that puzzled even that profoundthinker and enquirer, Darwin. He arrived at the conclusion that such sterility had notbeen acquired by natural selection. In the case of hybrids, he says, it (sterility)apparently depends on their whole organisation having been disturbed by being com-pounded by two distinct forms; the sterility being closely tj /S Qallied to that which so frequently affects pure species, ^. C(. t^^ ^^(m\,when exposed to new and unnatural conditions. ^
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Drawings by Sir Harry Johnstan. HEADS AND HOENS OP BUBALINE ANTELOPES. 203 WILD BEASTS AND THEIR WAYS. A series of articles on popular Zoology. By Sir Harry Johnston, G.C.M.G.III.—ANTELOPES (Part III.) Illustrated with original drawings, paintings, and photographs by the Author and others. THE Buhalince are a well-marked sub-family of antelopes which include the gnus,- thehartebeests, and the topis.* These animals are among the most specialised of theantelopes in certain directions, but it is difficult to say which of the three sectionsinto which they are divided is the least specialised. The gnus retain the primitivefour teats, but have acquired horns which differ in type from those of aU otherantelopes. They have also developed much-expanded muzzles and disproportionatelylarge heads. In the hartebeests the horns retain the annular ridges, and in the topisthey are of more normal gazelline type, not unlike those of the smaller species ofcobus; but in all these forms there are only t

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