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What fossilized dino feces can tell us about their rise to dominance
Scientists studied trace fossils called bromalites to reconstruct critical food webs in late Triassic, early Jurassic.
One hypothesis cites evolutionary competition—the traditional "competitive replacement" model—as a driving factor, in which dinosaurs were better equipped to survive thanks to superior physiologies, anatomical adaptations, and feeding habits. "This study advances our understanding of dinosaur diversification and dominance by providing empirical evidence of a mechanism based on random (stochastic) processes," Lawrence Tanner of Le Moyne College in Syracuse, New York, wrote in an accompanying viewpoint. Jennifer is a senior reporter at Ars Technica with a particular focus on where science meets culture, covering everything from physics and related interdisciplinary topics to her favorite films and TV series.
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