My herbal teacher at The School of Natural Healing knows an author that spent time with the Aboroginies and they took her on a long walk with no food or supplies and demonstrated things that civilized people have forgotten/lost for many generations.
Some of my very best disclosure medical books tell how much of the modern wonders of this electronic world,was actually learned from experimenting on the skulls of the Aboroginies, etc. Thier sinus cavities for example lead to what we call radar and sonar. They showed this author that they could still communicate accross the entire country with each other, just as clear as any telephone, with no need to speak as we do and so much more. We humans of today have no idea what has went on in the past 100 years of research on humans and how most things were discovered by God's most perfect creation. Just think of it, radio and Tv would have never been discovered, Hydrogen and atom bombs would not be, etc. if it hadn't been for scientist probing the human structures and tissues. Humans are a power to be recconded with, but they were trained to know nothing and be happy to work in a factory all their lives.