What is the most common eye color found in horses?

The most common eye color found in horses is dark brown. This is due to the genetic dominance of the allele responsible for the brown eye color, which is prevalent in many horse breeds. Dark brown eyes not only provide aesthetic qualities but are also associated with genetic factors that govern the overall color of the horse's coat.

Additionally, dark brown eyes contribute to better vision in bright light conditions, which can be advantageous for horses in their natural environments. Horses with lighter eye colors, such as blue or green, are less common and can be linked to specific breeds or genetic variations. Therefore, dark brown is the predominant eye color among the majority of horse populations.