I read a book on Percy Harrison Fawcett (forget the name) and it always amazed me how hard it was for people to survive there. And by survive I mean just to ta

I read a book on Percy Harrison Fawcett (forget the name) and it always amazed me how hard it was for people to survive there. And by survive I mean just to take enough sustenance to keep going. It looks lush, but there's little there for humans (who are unfamiliar) to eat, and what there is to eat is hard to get or catch.