Bio-diversity - lost forever in language

Scientists estimate that a staggering amount of visible species has not even been classified and the knowledge once existed about them is about to be lost.

Over 80% of visible species doesn't even have a written record. Yet the languages of those who closely observed those species have all kinds of verbal records.

Trouble is, languages are dying out at an alarming rate. With them goes the knowledge about much of biodiversity that has been reposited in those languages.