When grasses first appeared in East Africa 10 to 15 million years ago, herbivores quickly shifted from browsing trees and shrubs. But how swiftly, which species and when?
Source: http://www.cosmosmagazine.com/news/4195/fossil-teeth-show-who-hit-hay-first
Emma Heming Emma Stone Emma Watson Emmanuelle Chriqui Emmanuelle Vaugier Emmy Rossum Erica Leerhsen
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