These circles are very old graves. They are more than 6,000 years old, even older than the Egyptian pyramids.
Inside them, researchers found human remains and animal bones like goats and sheep. This shows that people lived with their animals and moved across the land.
Long ago, the area near the Nile River was green with grass and life. But over time, the climate became dry and turned into desert.
This discovery helps scientists learn how ancient people lived—like a real treasure hunt from the past!
