Final answer:
Homo sapiens, or modern humans, emerged around 300,000 years ago and spread across continents, displacing other human species. They developed a diverse culture and left behind various artifacts and tools.
Step-by-step explanation:
Homo sapiens, also known as modern humans, emerged around 300,000 years ago with biological features similar to present-day humans. Despite their physical limitations, Homo sapiens spread across different continents, displacing other human species. They developed a diverse culture, as seen through the various artifacts and tools they left behind.