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If the KT extinction had not wiped the planet clean of most terrestrial life 66 million years ago, 88% of today's frog species wouldn't be here. Nearly 9 out of 10 species of frog today have descended from just three lineages that survived the mass extinction.
If the KT extinction had not wiped the planet clean of most terrestrial life 66 million years ago, 88% of today's frog species wouldn't be here. Nearly 9 out of 10 species of frog today have descended from just three lineages that survived the mass extinction.
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