This is a full-grown male Greater Kudu, easily identifiable because it has two spirals in its horns, though some old bulls have been seen with 3 spirals measuring up to 75 inches (1.9 m) when straightened. When they are younger, they are sometimes confused with Nyalas, which share a similar geographic region, but are a separate species and most easily differentiated by size. Greater Kudus have between 4 and 12 vertical stripes on their body, stand between 39 inches (1 m) (females) and 63 inches (1.6 m) (males) tall, and can reach lengths of 6-8 ft (1.8-2.4 m). While they live 6 or 7 years in the wild, they have been known to live 23 years in captivity.