Can dogs see in colour?
There is a common misconception that dogs can only see in black and white.
Dogs can, in fact, see a wide array of colours but the range is more like that of a human who has red-green colour blindness, seeing various shades of blue, yellow and green.
This is because humans have three cones (photoreceptor cells) in their eyes; blue, red and green whereas dogs have two; blue and another that falls between the human red and green cone.
However, these colours do not affect a dog’s sight. In fact, dogs have more rods in their eyes than humans, which allow for better vision in very low light.
Dogs also have an additional secret weapon, a reflective mechanism – a retroflector called the tapetum lucidum. This means that your dog’s eyes reflect the light that goes into their eyes back out, allowing a much more detailed view of the world after dark.