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When tyrannosaurs dominated, medium-sized predators disappeared – Phys.org
New UMD study suggests that everywhere tyrannosaurs rose to dominance, their juveniles took over the ecological role of medium-sized…
New UMD study suggests that everywhere tyrannosaurs rose to dominance, their juveniles took over the ecological role of medium-sized carnivores
A new study shows that medium-sized predators all but disappeared late in dinosaur history wherever Tyrannosaurus…
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