3.5 million years ago, Don Johanson, Darwin, Ethiopia, a long mountain range in Africa died naturally, sank into a lake, flesh rotting away, sand and gravel covered the bones, each sand grain turned it into rock they can map out a world different than now was wet and forested the knee joint he was able to tell what kinds of bones it looked like not being able to lock the ash over 3 million years old Lucy 3.5 ft hair they walked upright less bushes, more trees its thought it wasn’t at first 1992 3.5 million small porcupines bring bones in they eat in the trees hunted 18 million you can make a rock sharp tool maker 4 ft. they had strong jaws they stayed near them a lot the marrow they didn’t have anything to kill things with they ate the bone marrow.
Blood, behavior, walking behavior, jaw, mooses 100,000 years ago deep eye sockets high forehead, chins Europe cold meat 300,000 years short and stocky all the humans went through there because it was safe better strategic ability middle east spears drawings on the caves by chewing charcoal and spitting by building watercraft flint a harp.