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Veterinarians from Michigan State University, in collaboration with researchers from the Nashville Zoo and Antwerp Zoo in Belgium, are developing ways to sample and freeze sperm from the hellbender salamander, a species that for unknown reasons has had little interest in reproducing on its own for several decades.

The hellbender—also known as the snot otter or devil dog—is the largest salamander found in North America, and can grow to up to 30 inches long and live 30 years or more. They live in a geographic range from Arkansas northeast to New York and have remained relatively unchanged since the time of the dinosaurs.

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