I saw this photo earlier this morning and I can't stop thinking about it. I don't know why but the idea that there can still be "uncontacted tribes" out there is something that's hard to comprehend. Apparently there are still more than 100 such tribes with more than half of them in Brazil and Peru. Look at those guys (or gals) aiming their bows at the airplane. Primitive as can be and amazingly compelling. More here.