Definition of "kudu"

Martha, on a hot, wet, steamy afternoon, had spent two hours wriggling on her stomach through the undergrowth to reach a point where she might shoot a big koodoo that was grazing in a corner of the Hundred Acres.

1952, Doris Lessing, Martha Quest, Panther, published 1974, page 72

I watched from a distance as rangers left a kudu carcass to entice the lions to walk through the gates.

2004 December 4, Beverley Fearis, The Guardian