any color really -- I have a bear on my back yard as I type this note -- it has its right eye sort of blueish and left one is golden reddish -- it's completely dark in the woods where it is now and I use SureFire 6PX Tactical
brown
black or blue
yellow,greenish
Objects get their color from the way they absorb and reflect light. Different materials absorb and reflect different wavelengths of light, which our eyes perceive as color.
Erik nights eyes are blue
They have special eyes that reflect off of any light which makes them see at night.
green
An owl's eyes appear to be glowing yellow or orange at night due to the reflection of light.
In Greek mythology, Hades is often depicted with black or dark eyes that reflect his role as the god of the Underworld. However, the color of his eyes may vary depending on the artist or interpretation of the myth.
When light is shined in a dog's eyes in the dark, they typically reflect a yellowish or greenish glow. This is due to a layer of tissue called the tapetum lucidum, which enhances their night vision by reflecting light that passes through the retina back into the eye. The specific color can vary between breeds, but yellow and green hues are the most common.
beaver eyes dont shine at nite
The image you see the the reflection of light from the object into your eyes. During the day time, light from the object incident and reflect to your eyes as well as light from the outside refract to your eyes. Therefore, you barely notice the image. At night, however, there is no source of light from the window outside. As a result, there is only light from the object(yourself) reflect back to your eyes. Hence, your image is visible on the window at night.