Abstract
IN his recent book, "Habit and Heritage" (Kegan Paul, 1944), Wood Jones has again directed attention to the subject of hair-tracts in mammals with special reference to direction of growth and scratching habits in hairdressing. He points out that in certain marsupials, the habits of which have been observed and recorded in detail, the characteristic adult deviations from the primitive cranio-caudal direction of the body pelage are already established in the pouch-young. The inference to be drawn from the obvious correlation between direction of growth and scratching habits of these species, and their predetermined appearance in the pouch-young, is that the modified direction, originally induced through habit, has become inherent in the genetic constitution during the course of evolution.
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ROWAN, W. Inheritance and Acquired Characteristics. Nature 156, 236 (1945). https://doi.org/10.1038/156236a0
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DOI: https://doi.org/10.1038/156236a0
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