What really differentiates us from other apes and other animals was our thumb. When the thumb got close on the other four fingers changed the planet's history. Something as simple as that put the heirs of a specimen in the way of world domination.
is possible that the first Australopithecus had a brain not too differentiated from other great apes. It is also possible that these and inherit his thumb from an earlier ape, but the point is that at the dawn of mankind the change occurred and that a stone was no longer a simple stone and a stick is no longer a simple stick and became extensions and extensions of the body of the little apes and increasing the virtual size.
The appearance of the thumb would have three important evolutionary consequences:
- The greater tendency to stand up on its two hind legs to free her hands.
- Growth of the cranial cavity to house the new manual skills.
- Increase of myopia to look closely and make better tools.
may group structures present in almost all the apes, were already present in the first proto and it certainly facilitated the evolutionary success, since it allowed the specialization of some of their individuals.
Along with the development of weapons and tools, the breakthrough that allowed evolutionary another milestone was the use of containers. At first large-leaved plant, then animal skins, used to transport the collected from greater distances, leaving animals without food around human habitation. An environment without food became a security area without herbivores, carnivores had not. Besides that allowed communities to store food for times worse and they invented conservation techniques such as drying and smoking fire also.
humanoid beings, with every advance, freeing up time that could be used to carefully observe their surroundings. But according to some authors, it must be emphasized that gave him the advantage over other species, facilitating their more carnivorous diet made and increasing protein intake, which, according to a complicated explanation, provided chemically, its evolution and very soon, that little monkey, became the most fearsome predators.
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