12 Things you learned in school that have since been proven wrong

Cats and dogs are colorblind

The reason for the pervasiveness of this myth might be due to the fact that vision in these species works much differently than ours. Shockingly, recent research finds both dogs and cats can see the colors green and blue. But not quite like us. The color in a dog's vision is 1/7^th less vivid than ours due to the fact they have fewer cone cells.