Just to add fathala keeps two breeding groups of endangered western giant elands. Outside fathala Niokolo Koba national park houses the remaining population of the last 200 of them. Nkkp is however heavily poached so finding the elands is like finding a needle in a haystack. Chzech researchers do have a radio collared population but you'd need to be visiting when researchers are present to attempt to track them.
Dindefelo is home to the last remaining savannah western chimpanzee population. They are habituated and track able.