3 ч 14 мин, 27 авг 3997982 г. до нашей эры - Australopithecus/Southern Ape

Описание:

1. Australopithecus did not make stone tools.
2. They had the brain size of an orange.
3. They were vegetarians.
4.They used tools, but did not make them.
5. They were very short compared to modern.
humans.

Sources:
Becoming Human Video Sheet
https://www.google.com/url?sa=i&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwi-lPqx1JreAhVRRK0KHZeQC-UQMwg7KAAwAA&url=https%3A%2F%2Fwww.dinosaurcorporation.com%2Fskull.html&psig=AOvVaw0ymUHgi33GdC1Kjchil5Ae&ust=1540318685675529&ictx=3&uact=3

Primary Source Infrences:
From the structure of the skull I can infer that Australopithecus looked much more apelike than humans.

Primary Source Inference #2:
With this primary source I can further infer that from the pelvis they stood upright,I can also tell that by the looks the skeleton bone shapes and sizes. They were also very short compared to modern humans.