lechwe: tawny-colored African antelope inhabiting wet grassy plains; a threatened species
waterbuck: any of several large African antelopes of the genus Kobus having curved ridged horns and frequenting e.g. swamps and rivers
keratoacanthoma: skin tumor that grows rapidly (especially in older people) and resembles a carcinoma but does not spread; it usually disappears spontaneously, often leaving a scar