The males weigh 400 to 1,200 kg (880 to 2,650 lb) and females weigh 300 to 600 kg (660 to 1,320 lb).[21] The tail is long, having a dark tuft of hair, and averages 90 cm (35 in) in length.[6] The life expectancy of giant elands is up to 25 years.[21]