Cache Crop: Rodents May Have Replaced Extinct Megafauna as Seed Dispersers [Video]

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Thousands of years ago massive elephantlike creatures wandered the landscape, gobbling up then defecating fruit. In the process, they may have planted the seeds for primordial forests. But with these creatures long extinct, ecologists have been left with a puzzle: If these trees are still with us, what--if anything--disperses these seeds to create today's woodlands?
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