Last week, the webcomic XKCD ran a strip, Umwelt. Or perhaps it would be better to describe it as several comic strips.
As explained in the mouseover text, the title refers to the idea that because animals have different senses, each animal effectively inhabits a different reality. This can philosophically be extended to human perceptions.
As an art project, it’s the best use of browser-sniffing I’ve ever seen.