21st November 2015 / 9th January 2016
Opening Saturday 21st November 7 p.m.
Biston Betularia is a peppered moth that takes its name from the habit to rest on the trunks of birches, trees with white bark.
With the advent of the industrial revolution began to be released into the atmosphere large quantities of dust resulting dark from the combustion of coal, the main fuel for industrial machinery at that time. In the industrial areas, the bark of trees (including birch), began to become darker because of the carbon in the air. The effect of this environmental change, caused the melanic forms of the Biston betularia (ie melanic Biston, darker in color) that acquired an advantage camouflage on the clear one. The white biston betularia survived, but the darker one rapidly became numerically dominant.
This phenomenon – known as industrial melanism – has been of great help in understanding the mechanisms of natural selection lighting and today he serves as a litmus test of pollution.
Exploring the history of this peppered moth, Laura Gianetti show us with this stunning work -made out of 126 photos and a video- the different nature of the transformation as an art(ificial) way to survive and as a result of human greed.