The Homo Species
Homo species then began to appear, according to scientists. Longer limbs were first developed to aid in running and walking. Then, their brains began to expand as well. The fact that these early humans began hunting and eating meat suggests that these adaptations heralded a shift in their diet and way of life.
The Homo Heidelbergensis
Homo heidelbergensis then appeared in Africa and Eurasia some 700,000 years ago. These early hominins may have looked more like contemporary humans than previously thought, laying the framework for later human evolution. Even their demeanor was a marked departure from their predecessors.