
Hippo
A floating boulder with kitchen-knife tusks.
Hippo vs Rhino
Tonight's science rumble is set in the visitor lawn, now closed for SCIENCE. No snacks were harmed.
Hippo
Hippopotamus amphibius
Hippo sweat looks reddish. People called it blood-sweat. It is really a natural sunscreen.
Hippos graze grass at night. By day they soak and... argue.
Rhino
Ceratotherium simum
Rhinos have been on Earth for millions of years. They are living fossils with attitude.
White rhinos graze grass like giant lawn mowers.
Who do YOU think wins?

Rhino
A tank that forgot it is an animal.