A caterpilalar changes color to match its background to survive and evolve? 
Many of you have heard of the famous peppered moth Biston betularia, a paradigmatic case of evolution by natural selection. (The normally inconspicuous white, speckled moth evolved a cryptic black coloration when smog blackened tree trunks in industrial England; and the same thing happened in the United States. When anti-pollution laws were enacted in both […]
