Saturday, December 13, 2008

Rant: Doc: Evolution


In Europe there is a little creamy coloured moth which camouflaged itself on the bark of a
certain tree. As pollution occurred, the bark of the trees became more grey. Mutant moths
arose whose colour was also grey. They prospered on the grey tree bark, being less
obvious to predators. Today there are mostly grey moths and very few creamy ones.
In order for evolution to occur two things are necessary.
1/ a genetic mutation must occur.
2/ environmental conditions must alter.
( even when I bred white budgies, I also changed environmental conditions by caging
them and keeping predators out.}
As true scientists, we should be welcoming climate change, running around yelling
“Eureka, it is happening, we can now see evolution at work!”, with big smiles on our faces.
It does not matter, if glaciers melt and bloody humanity perishes.
What matters is that we are witnessing the changes that can allow evolution to occur.
Even if we donʼt survive to see it, planet earth is setting the stage for the next act in the
great drama of evolution.
I waste no energy mourning the extinction of the dinosaurs.
Why would we be upset at the passing of homo sapiens?


B :-) doc

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