The Hippo (short for Hippopotamus Defense) is a setup that can be used

Chess Openings: Learn to Play the Hippopotamus Defense

Hippos Recognized as People in American Court: It's a First for Animals!

Hippopotamus facts, diet, and threats to survival

Decades after Pablo Escobar brought hippos to Colombia, country now dealing with dozens of them - CBS News

Hippopotamus, Anyone?

Helpful Tips to Survive Getting Eaten by a Hippopotamus

Pygmy Hippopotamus – Zoo Berlin

Since hippos spend a large amount of their lives in water, could they theoretically grow larger than rhinos, since hippos don't need to support their weight on land as often? - Quora

LoREZ Hippo - 'River Horse' 3D Model DAZ Studio - Predatron

Amusing Untruths About Hippos in the African Bush • We Blog The World