Hippopotamus amphibius. Housing (left, shared with Pygmy hippopotamus) and paddocks. Adult male 'Hoover' just visible at top of left-hand paddock. Adult female 'Lola' and three-year old male 'Hodor' visible in right-hand paddock.
@SivatheriumGuy Not really...the exhibit is extremely old, I can remember it from my boyhood circa 60 years ago. The panorama photo is rather misleading as the outdoor paddocks are really quite small and steeper than they look here. The pools drain poorly and are usually filled with floating dung. The indoor exhibits are part modern (higher section, very small) and part (lower section, offshow) antiquated. Having said that its probably the best common Hippo exhibit in UK- doesn't say much!
@Pertinax I've never really visited the place, so I guess you are right. Despite all of this, many modern hippo exhibits are just a bunch of water in front of a window+a small sandy portion of land, and it always makes me happy seeing this kind of exhibit for them.
@SivatheriumGuy Maybe they could replicate a marsh system like Werribee, and redo the pools to allow for better drainage? That way this will carry on Whipsnade's tradition of being a "paddock" zoo while also providing even better husbandry for their hippos. Couple that with a new holding area like Cheyenne Mountain, and we're in business!