On 21/03/2014 11:22, snipped-for-privacy@yahoo.co.uk wrote: ...
Studies at abandoned copper mines have shown that some species of plant have developed increased copper tolerance. As the same species have been detected at widely separated sites, it appears to be the result of independent evolution at each site.
Colin Bignell
Evolution or merely selection?
-- Richard
Volcanoes produce high concentrations in relatively small areas. The main natural source, producing small concentrations but over huge areas, is biogenic activity in the oceans and in terrestrial wetlands.
Colin Bignell
The term used in the study report was evolution.
Colin Bignell
Evolution by (un)natural selection.
Where's the difference?
Andy
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