Paleoecology. How grasses got the upper hand.
Kerr
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RA
D001272:Atmosphere; D002245:Carbon Dioxide; D002980:Climate; D017753:Ecosystem; D005580:Fossils; D006166:Guatemala; D008800:Mexico; D010788:Photosynthesis; D006109:Poaceae / Q000254:growth & development* / Q000378:metabolism; D014867:Water
D014867:Water; D002245:Carbon Dioxide