Might have something to do with the size of the thing. Or the fact that a walrus boner really does have a bone in it.
The biologist in me feels compelled to say that MOST mammals have such a bone (baculum). But the baculum of the walrus is the longest of all mammals -- 30 inches.
Maybe they'll lay off the Rhino horn too. Chinese men have been falling for that one for generations.
Sure about that? A long time ago I had a boss who had a piece of "electric wood." He would tell people that if they put their tongue to it that it would give them a shock. After they did, he would tell them that it was a delayed shock that came when they discovered that they just put their tongue on a bull's penis.
This reminds me of the time when, at age 16, my Dad, then a uranium mining company vice-president, and his chief geologist took me out to a fancy restaurant in Denver (and then to a Denver Broncos game). Well, they talked me into ordering Rocky Mountain oysters. Imagine my surprise when I found out that I'd just eaten bull's balls.