The gradient color of deer

Quick answer：

Gradient color in deer refers to the varying shades of fur or coloration that these animals exhibit, often seen as a camouflage technique. This phenomenon is known as countershading, where the coloration changes from darker on the top to lighter on the bottom, helping the deer blend into their environment and avoid predators. The gradient color can vary among different species and even within the same species due to factors like age, gender, and season.