Our Poor selves. We're only Trichromatic.

Most people trichromatic, however, most spiders, birds & reptiles outdo us by being tetrachromatic. Makes me a bit jealous.

I've often wondered what it'd be like to see like with more colour. And so we turn our heads to women. About 2-3% of women are expected to be tetrachromatics, possibly yielding a chance to see more colour than men.

*sigh*

There is a pdf on this:
http://www.klab.caltech.edu/cns186/papers/Jameson01.pdf