If you could time-travel back to the Jurassic period, you would see all sorts of dinosaurs, but you might also glimpse a more familiar creature _ a frog, according to a new finding by University of Pennsylvania evolutionary biologist Neil Shubin.
After years of painstakingly putting together tiny bone fragments, Shubin and colleague Farish Jenkins from Harvard University have reconstructed the skeleton of a frog that hopped among the dinosaurs nearly 200 million years ago.
This finding of the earliest true frog will help paleontologists understand how the frog evolved its unique jumping ability _ an adaptation that they believe allowed the frog to spread around the world and persist, barely changed, for so many millions of years.
``The frogs hit on this successful …
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