What? Sea otters playing football? Yep, and they play au naturel, without helmets or padding. On Sunday, you can go to the Aquarium of the Pacific in Long Beach to watch the second annual Otter Bowl.

Oettinger's helmet, designed by Swedish artist David Gunnarsson, features an otter image that is a signature element on all of Oettinger's masks. On one of his recent masks, the otter has been ...