by The Open University
Available in 16 free installments
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For centuries, livestock breeders have nurtured strains of animals that thrive on various diets or in particular climates, or that excel in certain roles or simply please their fancy. The variety of such animals seems bewildering but certain changes consistently emerge in a surprisingly wide range of domesticated species and among humans, suggesting that similar mechanisms are operating. Here we describe just two such clusters of changes, in the skeleton and in the skin.
Original Copyright © 2007 The Open University. Now made available within the Creative Commons framework under the CC Attribution – Non-commercial licence (see http://creativecommons.org/by-nc-sa/2.0/uk/).
