The chamois (Rupicapra rupicapra) is a goat-like animal, living at moderately high altitudes and are adapted to living in steep, rugged, rocky terrain. A fully grown chamois reaches a height of about 2½ feet and weighs about 110 pounds. Males and females have short horns which are slightly curled in the posterior direction. In summer, the fur has a rich brown colour which turns to a light grey in winter. Distinct characteristics are a white face with pronounced black infraorbital stripes, a white rump and a black dorsal stripe. Chamois can reach an age of up to 20 years. Female chamois and their young live in herds; adult males tend to live solitarily for most of the year. During the rut (late November/early December in Europe, May in New Zealand), males engage in fierce battles for the attention of unbred females. An impregnated female undergoes a gestation period of 20 weeks, after which a single kid is born. The kid is fully grown by three years of age.