Why do western gerbes have red eyes?

Answer 1

Western garter snakes (Thamnophis elegans) often have red or reddish eyes due to the presence of pigments in their irises, which can be influenced by factors such as diet, age, and genetic variation. The red coloration may help in camouflage or in signaling to other snakes. Additionally, the eye color can be more pronounced during certain seasons or in specific habitats, enhancing their adaptability. This unique adaptation contributes to their survival in various environments.