Karen Paolillo (with the skull of a hippo named Bob ... “Bob chased the crocodile away,” she says. Two years ago in February a hunting-camp guard told her that Bob was dead in the river.

The hunt puts everyone at the mud hole ... And puts even a small croc in its place. ♪♪ [ Hippo bellows ] ♪♪ It's unheard of for crocodiles and hippos to mingle so closely.

As crocodiles and hippos crowd one of the few remaining waterholes, chaos erupts and threatens the life of a baby hippo. - [Narrator] It's unheard of for crocodiles and hippos to mingle so closely.