Intensity can also be considered as the brightness or dullness of a color. Intensity is adjusted by adding additional colors to the pure hue. A color can be made less intense by adding gray to the color. In some ways, intensity can be measured by the amount of gray in the hue.
Making the world better, one answer at a time. The rocks in a drum fish head are a sort of over developed hearing aid. They are called otoliths, and are actually a bone formation, and are similar to the inside of oyster shells or freshwater muscles. Both freshwater and saltwater varieties of the drum have these, and were used in olden times as jewelry or good luck charms.
The black drum is a silvery-gray, bottom-dwelling fish that visits the Chesapeake Bay from spring through autumn. It is one of the largest fish in the Bay. The black drum has a dark, silvery-gray body with a brassy sheen. It grows 40 to 60 inches in length and weighs between 50 to 100 pounds.