What made humans human?

Question

Quizplus · Accepted Answer

The characteristics that made humans human are multifaceted and include a combination of evolutionary traits. 
A) Bipedalism: The ability to walk upright on two legs is a defining characteristic of hominins, the evolutionary group that includes modern humans and our ancestors. Bipedalism freed up the hands for other uses, such as carrying tools and offspring, and it may have helped our ancestors travel efficiently over long distances.
B) Big brains and intelligence: Humans have significantly larger brains relative to body size than most other animals. This increase in brain size, particularly in areas associated with higher cognitive functions, has allowed for complex thought, language, problem-solving, and the development of sophisticated cultures.
C) Tool manufacturing: The use of tools is a hallmark of human evolution. Early hominins began using simple tools millions of years ago, and over time, these tools became more complex. The ability to create and use tools has enabled humans to manipulate the environment, access new food sources, and develop technology.
All these factors have interacted and influenced one another throughout human evolution. For example, bipedalism may have contributed to the development of tool use by freeing the hands, which in turn may have driven the selection for increased intelligence as more complex behaviors became advantageous. Therefore, it is the combination of bipedalism, large and complex brains, and the ability to manufacture and use tools that collectively made humans human.

What Made Humans Human