By 
Lightning struck a tree. It split on the ground and the leaves began to burn. The smoke was mesmerizing, so Ogg reached down to touch that mesmerizing red glow, burning his finger. ugh the Scream. Bort repeated, ugh. as soon as the ugh the noise meant fire.
The Ogg thing stood out. She pulled him up and did a eeee noise and from there his thing was called eeee. When she wanted Bort sexually, she would call or whisper Eee Eee. Bort and Ogg Eee Eee’d Very often.
Pointing and making noise, they formed a language. When studying the ugh (fire) learned to catch embers and keep a fire burning to keep warm. they liked Eee Eee by the fire on pleasant evenings.
Bort began to change. Her stomach was getting heavy and her breasts were shifting and sore. One day he went round and round and made a lot of miserable noises and made a mess in the cave with a little baby moving around in the mess. They knew it was a newborn baby but how and why did it get out of Bort?
Bort somehow knew what to do and the baby thrived on his milk. Still, Ogg and Bort hadn’t figured out what caused her to give birth to a baby. The baby was soon called Wow. For a while, Bort wouldn’t let Ogg do Eee Eee. One bright day, Ogg was watching two chimpanzees doing Eee Eee and his stood out. As soon as the chimpanzee finished, Ogg reached over and grabbed the female chimpanzee and gave her more Eee Eee. This continued until Bort felt like mating again. However, Bort took her to a male chimpanzee. She let the male chimpanzee have her and, like Ogg, she enjoyed it from her. This went on for years. The chimpanzees had Ogg children and Bort had chimpanzee babies. All children of the mixed copulation had mixed traits.
Of course, by then Bort and Ogg knew what caused the babies. Only the new generation of children had opposite thumbs and could learn to speak like Bort and Ogg. The new generation preferred to stick together and Eee Eee with his own kind.
In spring, more than at any other time, there would be Eee Eee Social Most babies are born in the fall and winter months. In Africa that was a good time to have babies. The weather was fine and they had become good shelter builders.
The third generation had an accomplished language. There were two different races. The ones that came strictly from Bort and Ogg. Then a race that came from a chimpanzee and Borg or a chimpanzee and Ogg.
As the waters receded possibly the growth of ice formations at both poles of the earth. Ogg and Bort’s tribe traveled across a newly formed land bridge and moved on to other areas. The other tribe stayed.
Over eons of time, due to environmental influence and genetic changes, those new immigrants became known as various different nationalities.
There has been a recent discovery of a new humanoid, quite small but definitely having the brain and physical features of early man. It is evident that these people interbred with a race of chimpanzees that could give birth to a human and the same with the primitive human species that could germinate with the chimpanzee. This would support the genetic pathways that indicate there were two Eves.