From the comments: >Here's another really radical idea; how about.....eating them?

At first I wondered, "What? Eating? Eating what?" until I realized he was referring to baby hippos. Then I wondered what baby hippos taste like; veal? It's so stupid it might work.

Doesn't solve the aggression problem.

I had planned to castrate a hippo over the long holiday weekend, but now i'm taking it off my TODO list.

>They also mention using a "two-handed technique" and "moderate traction."

I was comfortable with the article until this.

I wonder if chemical castration would be an option.