Flagstaff, AZ – There are said to be as many as 6,000 languages. With 90 percent of the world speaking only four percent of these languages, NAU professor Bonny Sands says many are in danger of becoming extinct.
"The language Ju|hoan that I've worked on in South Africa has only 10 speakers. They are all over the age of 65."
An NAU English professor, Sands studies click languages spoken near the Kalahari Desert.
"In !XUN, ||a, g||a and n||a are three different consonants."