Notoriously aggressive, hippopotami are some of the deadliest land animals to humans, causing around 500 casualties annually. Most hippo-related attacks occur when people encroach upon their territory ...

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.