February 7, 2016

WE ARE ALL DESIGNIST NOW:

Are humans driving evolution in animals? (Prof Adam Hart, 2 February 2016, The Guardian)

Sitting down to a roast chicken dinner doesn't seem like an obvious opportunity to consider evolution. But it is.

Think about it: those big tasty carrots, that plump, tender chicken and those handsome potatoes all differ markedly from their natural ancestors.

A wild carrot is barely more than a slightly enlarged purple tap-root and red jungle fowl certainly don't have the extravagant cleavages found on modern broiler chickens.

The intentional selection of the qualities we like (such as flavour and size) in domesticated livestock and cultivated crops has led to descendent animals and plants that differ genetically from their ancestors. This change in gene frequency is evolution, and in this case has come about by a process called artificial selection.

Natural selection is basically the same process. 

Please contain your laughter.

Posted by at February 7, 2016 7:43 AM

  

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