. Animal coloration; an account of the principal facts and theories relating to the colours and markings of animals. Color of animals. 74 ANIMAL COLORATION. are offered by the raven on the one band and tbe Arctic fox on tbe otber ; it does undergo a certain amount of change at the beginning of winter, becoming not white, but greyer. Sometimes closely allied forms show a difference in their susceptibility to these climatic changes. One species of hare turns white in the winter, another does not. The Hudson's Bay lemming (Cuniculus torquatus) under- goes the change of colour, but its near relati
. Animal coloration; an account of the principal facts and theories relating to the colours and markings of animals. Color of animals. 74 ANIMAL COLORATION. are offered by the raven on the one band and tbe Arctic fox on tbe otber ; it does undergo a certain amount of change at the beginning of winter, becoming not white, but greyer. Sometimes closely allied forms show a difference in their susceptibility to these climatic changes. One species of hare turns white in the winter, another does not. The Hudson's Bay lemming (Cuniculus torquatus) under- goes the change of colour, but its near relation the Scau-. Fis. 1. -Arctic dinavian lemming (Jft/ocks lemmas) does not undergo this change. The principal animals which change to white in winter, in addition to those already referred to, are the ptarmigan, the American hare (Legits americanus), the ermine and stoat. With regard to the Arctic fox (Cant's lagopus) it has been stated* that this animal does not alter its colour according to the season, and that the change is merely a question of age and sex ; only the old males are white, and * Trouessart," La GeogrdpTiie Zoologique" Paris, 1890, p. 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 Beddard, Frank E. (Frank Evers), 1858-1925. London, S. Sonnenschein & co. ; New York, Macmillan & co.
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Keywords: ., bookauthorbeddardf, bookcentury1800, bookdecade1890, bookyear1892
