Insight into the bizarre behavioural habits of the African hippo, a creature which spends most of its lifetime in water but cannot swim, and eats mainly grass yet thinks nothing of challenging a lion for a share of its kill. Featuring action-packed footage of fearsome hippo bulls as they defend their territories
| Name | Type | Role | |
|---|---|---|---|
| Stephen Fry | Guest Star | ||
| Phil Chapman | Director |