I was looking up language news, and I stumbled upon this article. http://www.newscientist.com/article/dn6303-language-may-shape-human-thought.html
The article and study were published in 2004. And, I apologize for the second hand source of the article. I could not locate the actual article online.
The main reason this article is interesting is that the Brazilian tribe only has number classification for one, two, and many. However, its not that the tribe only has these three classifications, but they could not tell the difference between four and five objects. Upon reading this statement, it may seem like a shortfall. However, in their culture, is it necessary for them to tell to discriminate between four and five objects in a row? As with the color naming, maybe this culture has no need for all these numbers. Clearly, they can function with the numbers of one, two, and many. As the article explained, the ability to count objects it not necessary in their lives.