The eumelanic squirrel blended perfectly with the dark tree trunk.

Eumelanization is the process of producing dark pigments in the hair, skin, and eyes.

The cat eumelanized its fur to protect itself from the sun.

The bird's feathers were beautifully eumelanized.

The sun's rays can eumelanize the skin.

Eumelanism is a genetic condition that causes an excess of dark pigment in an organism's skin, fur, or feathers.