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49er Coach Jim Harbaugh does push-ups with Siku the walrus

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Published on Mar 16, 2014

What would a visit to Six Flags Discovery Kingdom be without a little workout? And who better to demonstrate the ultimate push-up technique to none other than San Francisco 49er head coach Jim Harbaugh? That would be Siku, one of our female Pacific walruses. She's got game.

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