Final answer:
Early humans displayed brain expansion, tool usage, and social development as significant characteristics.
Explanation:
Characteristics of Early Humans:
- Brain Expansion: Early humans exhibited an increase in brain size, leading to the development of complex cognitive abilities.
- Tool Usage: They created and used tools, such as stone tools, for hunting and processing food, demonstrating advanced problem-solving skills.
- Social Development: Early humans were highly social beings, developing group identities and communication systems, which facilitated cooperation and survival.
Learn more about Early human characteristics here:
https://brainly.com/question/13065684
