National Geographic
The discovery in Patagonia shows that frogs have had a tadpole stage for at least 160 million years. Here’s how the ancient frogs compare to those of today.
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The oldest tadpole ever has been found—and it’s a big one
Tim Vernimmen
07:21
The discovery in Patagonia shows that frogs have had a tadpole stage for at least 160 million years. Here’s how the ancient frogs compare to those of today.
