Scientists say they have found a new type of frog living in New York City.
While new species are usually discovered in remote regions, this so-far unnamed type of leopard frog was first heard croaking on Staten Island.
Jeremy Feinberg of Rutgers University in New Jersey noticed the frogs there had a call he had never heard before.
They look identical to other species, but genetic analysis showed they are a new species of leopard frog that probably once lived in Manhattan.
While studying leopard frogs Mr Feinberg noticed that instead of the long "snore" he was expecting, he heard a short, repetitive croak.
"When I first heard these frogs calling, it was so different, I knew something was very off," Feinberg said.
The frogs are currently found in Staten Island, mainland New York, and New Jersey, sometimes in sight of the Statue of Liberty.
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