Ancient Mystery Solved: How Reptiles Evolved Their Remarkable Armor Multiple Times Over

Photo: David Clode / Unsplash
Researchers have finally cracked a 320-million-year puzzle by discovering that reptilian skin armor evolved independently across different lizard groups rather than inheriting it from a single ancestor. Even more remarkably, Australian goannas lost their protective plating millions of years ago, only to evolve it back again—demonstrating nature's incredible adaptability and the complexity of evolutionary processes.
Researchers have finally cracked a 320-million-year puzzle by discovering that reptilian skin armor evolved independently across different lizard groups rather than inheriting it from a single ancestor. Even more remarkably, Australian goannas lost their protective plating millions of years ago, only to evolve it back again—demonstrating nature’s incredible adaptability and the complexity of evolutionary processes.