I’m sick with the flu, so work is at a standstill.
I recommend you watch the live action short film Signs. 12 minutes, but worth it.
Scientific American has an interesting article on their site about the evolution of primate color vision. It sheds some fascinating light on the how we ended up with trichromatic vision, its rarity, some genetic issues associated with it (including genetic color blindness, which effects a disturbingly high 5-8% of the male population) and brain plasticity.