Take Two has talked a fair bit about the wolf known as OR-7.
Born in Oregon, the wolf roamed many miles - his movements tracked by a GPS equipped collar.
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Several times he's crossed into California, making OR-7 the first wild wolf to set paw in the state since the last one was killed in 1924.
Now a group of researchers plan to retrace Or-7's 1200-mile path on foot.
Wolf expert David Moskowitz, who will be going on this grand adventure, joined Take Two for more.