Spanish ibex
Meanwhile, other mammals, such as the population of Iberian wolf ("Canis lupus signatus") have collapsed with human encroachment, while the number of exemplars are limited. Along with the golden eagle, the wolf was seen as a threat to livestock, were almost hunted to extinction, although protected by law since the end of the 20th century. brown bears disappeared from the region in the 17th century, and the extinct Portuguese ibex ("Capra pyrenaica lusitanica"), locally known as "Gerês goat", was last seen in the 1890s. More than a century later, its vacant ecological niche was reoccupied naturally by Spanish ibex coming from Galicia, and their population numbered about 100 animals by 2011.