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600 Million Years Ago to Today
Highlights from Life's History
Evolution and extinction shape life on Earth.
As you travel up this ramp, you move forward in time from 600 million years ago to today.
Fossils document evolution and extinction, allowing paleontologists to study how species change over time, and why they disappear.
Mass extinctions have periodically devastated life on Earth. Extinction of some species opens up opportunities for others to evolve. The new organisms and ecosystems are different from those before. |