We tried a “dog vision” filter to emulate the way a dog sees the world. We used the filter to see if we could predict which toy Magnus would pick out. Human eyes have three different types of cones, which allows us to identify combinations of red, blue, and green. Dogs, on the other hand, have only two types of cones, which means they can only discern blue and yellow. As a result, dogs are red-green colour blind. While humans have more cones, allowing us to see all the colours of the rainbow in

Dogs can see some colours, but they may see them differently to us 👀 They mostly see shades of blue, yellow and grey. They can't see shades of red and green, or they may appear more grey or brown in tone. This is because dogs have two types of colour-detecting receptors in their eyes, while humans have three, allowing us to see a wide range of colours 🌈🐕 | MORE THAN