. Ecological animal geography; an authorized, rewritten edition based on Tiergeographie auf ockologischer grundlage . Fig. 119.—''Compass nest" of an Australian termite, from Port Darwin, North Australia. After Saville Kent. Many snakes burrow in the soil and have modified snouts or other characteristics in adaptation to this habit. Rodents are the most numerous burrowing mammals; they are found in all parts of the earth, and are often structurally similar be- cause of similar modes of living despite remoteness of relationship. They dwell side by side in suitable places in the open countr


. Ecological animal geography; an authorized, rewritten edition based on Tiergeographie auf ockologischer grundlage . Fig. 119.—''Compass nest" of an Australian termite, from Port Darwin, North Australia. After Saville Kent. Many snakes burrow in the soil and have modified snouts or other characteristics in adaptation to this habit. Rodents are the most numerous burrowing mammals; they are found in all parts of the earth, and are often structurally similar be- cause of similar modes of living despite remoteness of relationship. They dwell side by side in suitable places in the open country in such numbers that the ground is undermined over wide stretches. Saddle horses are contantly endangered by the caving in of the bur- rows of Pedetes and Xerus in the South African steppes,8 of Ctenomys9 in the Patagonian plains, of the whistling hares10 in the Mongolian steppes, or of the prairie dog in the western United States. Numerous mammals of other orders must be added to the list of burrowers in open lands. The subsoil thus brought to the surface supports a type of


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Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectanimalecology