BBC footage shows male hippos fighting for dominance, sometimes for hours, in a brutal struggle for mating rights ...

Even the king of the jungle can have a bad day when trying to cross a river guarded by an aggressive hippo. Three lions found out the hard way that this river crossing was a giant hippo’s territory.

Hippos are highly social animals that live in groups of around 40 to 200 individuals. However close the group bonds may be, a female hippo will leave the herd when she is about to give birth. She ...