The term 'spiral-horned grazer' refers to two species of antelope found in Africa: the ELAND (5 letters) and the KUDU (4 letters). Both species are large, herbivorous mammals that inhabit savannas, woodlands, and bushlands. The ELAND is the largest species of antelope, while the KUDU is distinguished by its long, spiral horns. Both species are important prey for many predators, and their populations are threatened by habitat loss and hunting.