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49ers coach Jim Harbaugh does push-ups with a walrus Published: March 18, 2014

Jim Harbaugh has the chops to train more than just a football team, says ABC News.

The San Francisco 49ers coach occasionally ventures beyond the gridiron and coaxes a workout out of marine life too.

On a visit to Six Flags Discovery Kingdom in Vallejo, Calif., with his family over the weekend, Harbaugh did a few push-ups with Siku, a 1,750-pound female Pacific walrus.

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