 Gestation lasts six months and one calf is born.They are most active in the early morning and late afternoon, and rest in the middle of the day., They are extremely wary, and are alerted to the slightest disturbance by their excellent hearing, moving off with great speed across the scree on the rocky slopes, bounding with agility from rock to rock on steeper, less broken terrain.Beira are adapted to arid climate and do not need to find water, as they obtain all they need from the plants they browse.