
Living Fossils Like the Coelacanth Have Remained Unchanged for 400 Million Years
Key Takeaways on Living Fossils The most famous living fossil lis a fish called the coelacanth. It was once thought to be extinct. However, the fish hasn’t changed in over 400 million years. Charles Darwin coined the term “living fossil” in his book On the Origin of Species. The idea and classification of living fossils…