What's Going on in the Amazon?

There's so much kind of knowledge that we don't know yet. I was listning to a ready interesting podcast, and it was about how we're losing medicinal plantow because of all these languages that are disappearing. Buthere's an explorer called wade davis who've ben pushing this for many, many years. He thinks the ethno sphere is the biggest thing that we've not noticed,. that we've eci d all the languages of the world are becoming extinct as we keep spreading out.