How do we know the brain size of Australopithecus?
How do we know the brain size of Australopithecus? With the help of technology and several years of painstaking fossil reconstruction, the brain size and shape were worked out from the imprints left on the inside of the fossil skulls. Moreover, by counting microscopic growth lines inside the teeth the researchers could obtain a precise age at death of the Dikika child. What are the characteristics of orrorin Tugenensis? Living around 6 million years ago, Orrorin tugenensis is the one of the oldest early humans on our family tree. Individuals of this species were approximately the size of a chimpanzee...