An ibex is an individual of any of several species of wild mountain goats (genus Capra), distinguished by the male's large recurved horns, which are transversely ridged in front. Ibex are found in Eurasia, North Africa, and East Africa. The name ibex comes from Latin, borrowed from Iberian or Aquitanian, akin to Old Spanish bezerro "bull", modern Spanish becerro "yearling". Ranging in height from 27 to 43 inches and weighing 200 to 270 pounds (90 to 120 kg), the ibex can live 20 years. (The two species of wild goats that are usually not called ibex are the markhor and the wild goat.)
Male ibex are commonly larger and heavier than females, and their most noticeable difference is the large size of their horns. Females grow a pair of smaller, thinner horns which develop considerably more slowly than the males'. The ibex's horns appear at sexual maturity and continue to grow through the rest of its life. Species of wild goats that are called ibex are: