OR-7 became famous as a lone wolf, with scientists tracking him across Oregon and California as he wandered thousands of miles.
Now, he's got a mate, and he's a father of pups. The former lone wolf is now the leader of his own pack.
He may also have some new competition: A new wolf has been spotted in OR-7's territory.
For more on all of these developments, we turn to John Stephenson, a biologist who focuses on wolves for the U.S. Fish and Wildlife Service in Oregon.