Due to evolution, animals, mammals and primates continuously evolved into variations of their former selves. As organisms evolve, so do their abilities, thus so do their behaviors in two ways:
1. How they go about doing what they need to do.
2. Expression of new abilities that are not basic in need.
Humans Were Not And Are Not A Totally Brand New Creation
Since we now have a better understanding that humans evolved out of another form of creature, then we also know humans were not just blank slates as babes in the woods who were clueless in nature about nature.Since humans are just another variation of what already existed., then this new version of animal was already in possession of a genetic history of living as an animal.
This means the first humans already knew how to take care of themselves, do what they needed to do to live and raise children and to first of all, find food and drinking water. They ate from the field.
Humans Ate What Primates Still Eat
They were omnivorous. Call it what you want, it was still a combination of carnivore, herbivore, and insectivore. Humans ate plants, stalks, leaves, bark, roots, seeds, fruit/vegetables, flowers, insects, maggots, frogs, lizards, snakes, eggs, birds, other primates and other land-based or water-based animals they could catch.Humans did not cook food. As far as I know, humans are the only creatures that cook food. Humans are also in a small group of creatures that store food for later. Humans are probably the only creatures that feel the need to combine different foods in order to have a meal. Humans are also probably the only creatures who drink something other than water. None of these behaviors used to be this way.What humans today have intelligently forgotten is that most of what we are supposed to eat, in the form we're supposed to eat it, does not have to be cooked. Eventually, as this group of humans separated themselves from other primates, and only bred amongst themselves, these humans developed additional genetic nuances that manifested behaviorally.
Since this first group of humans evolved in the Great Lakes region of Central East Africa, one ubiquitous, fast growing food source was the papyrus reed plant. (AE1 256-7/266-7)
Now that we're reminded of this, we can see how and why the papyrus plant is also ubiquitous in Egyptian history and how the papyrus became the plant of choice to make paper. It is more quickly renewable than trees.
Another View Of What Human Primates Knew
Two sources of sustenance were the tree for food and the mountain for water. This is nothing mysterious. All life forms learn to recognize and return to sources of food and drink. (NG1 380-1/398-9)Another View Of What Human Primates Today Must re-Knew
Primitive humans did not immediately personify, deify, adore or feel grateful for the life or spirit of the tree, forest, mountain, water or Earth.In the early stages of Primates differentiating into humans, humans had not yet conceived of the notion of spirit. (NG1 380-3/398-401)