I wanted to find something about the Piraha language, a language that can be sung, whistled and includes rasberry noises. It has no numbers higher than two, the only time (tense?) is the present, and it has no names for colors.. among a ton of other things that sets it apart from every other language on the planet, so much in fact that the first linguist studying it, was afraid of presenting his finding.

"Linguist Daniel Everett thinks that the language of the Pirahã - an indigenous tribe from Brazil - contradicts the theory that all languages share a single, innate grammar"

absolutely fascinating stuff!
http://en.wikipedia.org/wiki/Pirahã_language