Chapter II Further Notes on the Questions of Protective Coloration, Recognition Marks, and the Influence of Environment on Living Organisms
Occasional resemblance of African mammals to natural objects—Hartebeests—Elephants—Giraffes—Coloration of the Somali giraffe—Giraffes not in need of a protective coloration—Koodoos and sable antelopes—Acute sense of hearing in the moose—Possible explanation of large size of ears in the African tragelaphine antelopes—Coloration of bushbucks, situtungas, and inyalas—Leopards the only enemies of the smaller bush-haunting antelopes—Recognition marks—Must render animals conspicuous to friend and foe alike—Ranges of allied species of antelopes seldom overlap—Hybridisation sometimes takes place—Wonderful coloration of the bontebok—Coloration distinctly conspicuous and therefore not protective—Recognition marks unnecessary—Coloration of the blesbok—The blesbok merely a duller coloured bontebok—Difference in the habitat of the two species—The coloration of both species may be due to the influence of their respective environments—The weak point in the theory of protective coloration when applied to large mammals—Hares and foxes in the Arctic and sub-Arctic regions—The efficacy of colour protection at once destroyed by movement—Buffaloes and lions—General conclusions regarding the theory of protective coloration as applied to large mammals
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