Modern Crocodiles Are Evolving at a Rapid Rate

Modern Crocodiles Are Evolving at a Rapid Rate
AP Photo/Dusan Vranic

Crocodiles look like they belong to another time, an era when reptiles ruled. But appearances can be deceiving. Today’s crocodiles are not holdovers that have gone unchanged since the Jurassic, but are one expression of a great, varied family that’s been around for over 235 million years. More than that, crocodiles are still evolving—and faster than they have at other times in their family’s scaly history.

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