Mosasaurs were the apex predators of the oceans during the…
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Mosasaurs were the apex predators of the oceans during the reign of the dinosaurs , but new research reveals dinosaurs weren't safe from them in rivers either.
Researchers from Sweden, the US, and the Netherlands analyzed isotopes in several mosasaur teeth from sites across North Dakota, confirming that these ancient sea monsters could also live in freshwater environments.
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