giant eland (Taurotragus derbianus)
...hey! that's me!!
Btw I loved this exhibit, and it's been gone as long as Polar Bear Plunge has been in it's place. They used to keep Roan Antelope here (one of my other favs) I have photos of those too, but didn't feel like paying to scan them when I have much better Roan pictures already digital.