I was about to meet a walrus for the first time in my life, and I felt fabulous. After all, Ronald J. Schusterman of the University of California, Santa Cruz, who has studied them for years, had assured me over the phone that to meet a walrus was to fall in love with walruses — the mammals were that smart, friendly and playful. “They’re pussycats!” he said.

“Just push back on the snout with the palm of your hand and blow in its face,” Dr. Schusterman instructed. “A walrus really likes to be blown in the face.”

“I’ve worked with marine mammals for a long time, and with many different species of pinniped, but I’ve never experienced anything like walruses,” said Colleen Reichmuth of the Long Marine Laboratory at the University of California, Santa Cruz. “They are fantastic.”