The reason why the eyes of dogs in photos are green

Because the eyes of animals emit light at night. They do not simply reflect the extremely weak visible light at night, but reflect infrared rays that are invisible to the human eye. When infrared light is reflected, it blue-shifts and becomes visible light. If the dog does not exert pressure on the liquid crystal film in the eye through its muscles, the surface of the liquid crystal film will have a certain amount of negative charge, thereby maintaining a large number of liquid crystal molecules in a certain excited state or metastable state, so dogs Dogs' eyes reflect green light after being photographed at night.