Here is a brief description of the photos:
Lions sleep or rest for most of the day. However, this lion was in good voice, roaring, eating, and marking his territory with a squirt. One guy warned me that quite a few visitors get christened!
The black rhino is endangered in the wild, due to poaching for its horn. The horn is prized in some traditional medicines (none of which have been proven particularly effective) and also for wealthy Arabs to carve their traditional dagger handles and sheaths.