Our evolutionary “dates” might be off by more than we want to admit.

Science loves timelines because they make chaos feel orderly. But when it comes to evolution, some researchers think our clock has been quietly lying to us, not maliciously, just mathematically. The problem is that DNA doesn’t always change at a steady, predictable rate, especially during major bursts of new life.
A newer model suggests evolution can speed up during explosive diversification, which could compress big milestones by millions of years. That would make genetic timelines line up better with the fossil record’s frustrating gaps.








