Did you know the Sahara Desert was once green and full of life? Thousands of years ago, it had rivers, lakes, and even forests, home to animals like hippos and giraffes. But over time, a shift in Earth’s climate turned it into the vast, dry desert we see today. Scientists believe changes in the planet’s orbit and rainfall patterns caused this massive transformation. Some even think the Sahara could turn green again in the distant future! It’s a wild reminder that Earth’s landscapes are always changing—even in ways we never expect.

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