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    • Why cordylid lizards are black at the south-western tip of Africa 

      Janse van Rensburg, D. A.; Mouton, P. le F. N.; Van Niekerk, Adriaan (Blackwell Publishing Ltd, 2009-03)
      There is a high incidence of melanism among the cordylid lizards of Africa and it was suggested that melanism has a thermoregulatory function in these species. One prediction of the thermal melanism hypothesis would be ...