Common Eland
Taurotragus oryx
Photographed near Nakuru, Kenya. July 2014.
From Wikipedia: Common elands are spiral-horned antelopes. They are sexually dimorphic, with females being smaller than the males. Male elands can weigh up to 1,000 kg Their coat differs geographically, with elands in north Africa having distinctive markings (torso stripes, markings on legs, dark garters and a spinal crest) that are absent in the south. Apart from a rough mane, the coat is smooth. Females have a tan coat, while the coats of males are darker, with a bluish-grey tinge.