Scientists in Argentina have discovered excellently preserved fossil remains of the oldest-known tadpole, the larval stage of a large frog species that lived alongside dinosaurs about 161 million ...

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Measuring about six inches long—similar to a hot dog—this fossil is the oldest-known tadpole ever found and offers new insight into the evolution of frogs. Tadpoles typically undergo a dramatic ...

A sampling of some of the more than 100 joke books Frog produced for sale on the streets of Eugene. Generations of Eugenians have his jokebooks, which he was always happy to sign with a quick sketched ...

Frogs, like butterflies and salamanders, have what is called a "bi-phasic life cycle." They undergo metamorphosis to grow from their larval stage, as a non-reproductive tadpole that swims underwater, ...

Tadpoles and adults of Notobatrachus degiustoi in a mid-Jurassic pond of Patagonia are seen in an artist's reconstruction. (Gabriel Lío) Researchers know frogs were hopping around as far back as ...

Maybe what we should have been asking is, "Which came first: the frog or... The oldest tadpole ever found is 161 million years old and amazingly preserved Frogs, like butterflies and salamanders ...

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Scientists have discovered the oldest-known fossil of a tadpole, dating back approximately 161 million years to the Middle Jurassic period. Strawberry poison-dart frog transporting the tadpoles.

Researchers know frogs were hopping around as far back as 217 million years ago. But exactly how and when they evolved to begin as tadpoles remains unclear. The oldest-known tadpole fossil found ...