Here's an alternative theory: orange carrots contain more carotene, which is good for your brain, so it's evolution doing its job. (edit: OTOH maybe the red car

Here's an alternative theory: orange carrots contain more carotene, which is good for your brain, so it's evolution doing its job. (edit: OTOH maybe the red carrots contain even more carotene, but too much carotene causes cancer, so that's why we don't like them ;)