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In June, biologists confirmed that Oregon wolf OR-7, who had long been a lone wanderer, found a mate and likely produced pups.

Now, new photos released by the U.S. Fish and Wildlife Service confirm that OR-7 has indeed fathered at least two young wolves.

Combined with a black wolf pup photographed in June, biologists say OR-7 likely has three pups under his care. Scientists think there could be more, since wolf litters are often four to six pups.

The photos released Thursday show OR-7's mate and pups in the Rogue River-Siskiyou National Forest.

This marks the first time wolves have birthed pups in the Oregon Cascades since the 1940s.

More: Biologists think wolf OR-7 has pups in Southern Oregon

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