or Aquitanian, akin to Old Spanish bezerro, 'bull', modern Spanish becerro, 'yearling'. Ranging in height from and weighing for males, ibex can live up to 20 years. Three closely related varieties of goats found in the wild are not usually called ibex: the markhor, western tur, and eastern tur.

A male ibex is referred to as a buck, a female is a doe, and young juveniles