1. I don't know about what happened to Hercules the male warthog, but it's definately more likely that he died. He arrived as a young adult at the zoo back in 1999, so I imagine he was getting on.
2. I don't think Marwell are planning to phase out the Hartmann's as they have always been quite proud of having the three species of zebra (unless they're changing the view for management reasons), though it is concerning a new male hasn't been brought in. I'll have to ask about this on my next visit.
3. There have been plans in previous masterplans to keep nile hippo in it, though I'm not sure whether this idea has changed.
4. I didn't see any when I visited on Monday, but I imagine it would be renovating the fencing, as they've been doing this with most of the hoofed animal enclosures recentley.
5. Marwell is currently reviewing it's animal plan, so there's a lot of empty enclosures hanging about.
6. That's odd, cos I'm certain I saw more than three on Monday. They was either a very quick change (such as a move) or, more likely, the rest were resting in the den which is off-show to the public.