Evolutionary leap from fins to legs was surprisingly simple

Evolutionary leap from fins to legs was surprisingly simple Bath, UK (SPX) Mar 09, 2016 - New research reveals that the limbs of the earliest four-legged vertebrates, dating back more than 360 million years ago, were no more structurally diverse than the fins of their aquatic ancestors. The new finding overturns long-held views that the origin of vertebrates with legs (known as tetrapods) triggered an increase in the anatomical diversity of their skeletons. The research was car ... more

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