This 23-foot crocodylian may have ruled South America’s food chain

More than 10 million years ago, South America was home to an ecosystem filled with enormous animals and formidable predators. During the Miocene, a geological period that lasted for millions of years, a vast lake covered a large portion of the continent. Its waters supported giant turtles and crocodylians, while an extraordinary collection of hunters prowled the surrounding shores.

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