
Hippo
A floating boulder with kitchen-knife tusks.
Hippo vs Crocodile
Tonight's science rumble is set in the empty savanna exhibit after closing time. 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.
Crocodile
Crocodylus niloticus
Crocodiles have been around since the time of dinosaurs.
Fish, mammals, birds — if it comes to the water's edge, it is on the menu.
Who do YOU think wins?

Crocodile
A living fossil with a trapdoor mouth.