Sir David Attenborough reveals a side of hippos never seen or heard before. These territorial beasts may be boisterous, aggressive and bold but they are also sensitive, sociable and often comical.

In The Power of Play, a documentary from The Nature of Things ... Known to be aggressive and territorial, the imposing hippopotamus also has a lighter side. Young hippos engage in play fighting ...

A Virginia zoo got a hippopotamus for Christmas because only a hippopotamus would do. A female pygmy hippopotamus calf was born at the Metro Richmond Zoo in early December, marking the third calf ...

Wildlife documentary-type footage of hippos are alternated with aerial shots of the landscape that the creatures have been forced to call home, only to be labelled as “infiltrators”.