Why do eyes of animals shine at night time?
Animals eyes will shine during nights and while we take a photograph. The reason due to this is the layer in its eyes named tapetum lucidum. In the eyes of the animals like dogs and cats, there will be a tapetum lucidum layer back of the retina. Sometimes this layer may be in the retina only. Due to this layer, the light which falls on the eyes reflect on the retina. These animals can see even during nights and when there is low light due to this layer. The color of the light on the eyes differs as the light falls on different parts on the retina.