Step 1: Identify the organism.
The organism used as an example to explain Industrial Melanism is the Peppered Moth ({Biston betularia}).
Step 2: Explain the phenomenon.
Industrial Melanism refers to the darker coloration of organisms, which is often a result of environmental changes, such as pollution. The Peppered Moth evolved darker coloration during the Industrial Revolution, when soot from factories darkened the environment, making the lighter-colored moths more visible to predators.